vapor / core Goto Github PK

🌎 Utility package containing tools for byte manipulation, Codable, OS APIs, and debugging.

License: MIT License

Swift 100.00%

vapor parsing serialization debugging codable swift-linux server-side-swift spm

core's Introduction

Vapor is an HTTP web framework for Swift. It provides a beautifully expressive and easy-to-use foundation for your next website, API, or cloud project.

Take a look at some of the awesome stuff created with Vapor.

💧 Community

Join the welcoming community of fellow Vapor developers on Discord.

🚀 Contributing

To contribute a feature or idea to Vapor, create an issue explaining your idea or bring it up on Discord.

If you find a bug, please create an issue.

If you find a security vulnerability, please contact [email protected] as soon as possible.

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core's People

Contributors

Stargazers

Watchers

Forkers

rymcol iamjono tanadeau kgn codetalks-new adileo roberttheprofessional bytethenoodle advatar agorskih ruedcode hashemi leo150 pedantix rafiki270 jseibert mrmage clawesome cellane patrykwas jimmya bre7 thesparklabs evil-talk mixio kwezan nonsensery natanrolnik readdle maciejtrybilo rausnitz twof wlisac zdnk popflamingo timbaev usatie 3a4ot foscomputerservices marekmatula dave890 grundoon dschwartz783 danielmandea carlosmayoralmx telangpu huynguyen1991 school-scope isabella232

core's Issues

Possible bug in Async.flatten

According to https://github.com/vapor/core/blob/master/Sources/Async/Future%2BFlatten.swift, "the order of the results will match the order of the futures in the input array.". But the current implementation simply adds an awaiter to each future, which appends its result to the final result array. That means that elements actually get appended in the order in which the futures are fulfilled, not in the order the futures had in the input array.

BLOCKER - Reflection doesn't work on classes

If you try and build and run the API template with the latest reflection stuff, it fails with:

[ INFO ] Migrating 'sqlite' database (FluentProvider.swift:28)
[ INFO ] Preparing migration 'Todo' (MigrationContainer.swift:50)
⚠️ [FluentError.reflectProperty: No property reflected for Swift.WritableKeyPath<App.Todo, Swift.Optional<Swift.Int>>] [/Users/condot01/dev/Vapor/ReflectTest/.build/checkouts/fluent.git-6251908308727715749/Sources/Fluent/Migration/Migration.swift:28:124]

This is apparently due to computed properties on classes (the ID key) not having an offset

add lossless data convert method

This could be nice for converting between types.

extension Data {
    public func convert<T>(to type: T.Type = T.self) -> T where T: LosslessDataConvertible {
        return T.convertFromData(self)
    }
}

2 Warnings during linux build with 5.0.x swift

I am not sure if this is a linux, swift, or core issue.

Core/Process+Execute.swift:163:17: warning: 'launchPath' is deprecated: renamed to 'executableURL'

Core/Process+Execute.swift:167:17: warning: 'launch()' is deprecated: renamed to 'run'

Do not get these warnings in Xcode.

Version 3.9.0 of Core

create file + service wrapper around NonBlockingFileIO

Foundation Base64 encoding broken on Swift 3.1

The latest stable version 1.1.1 uses Foundation's Base64 encoding, which is broken in the 3.1 release, causing low-level crashes in JWT (already worked around), websockets (vapor/vapor#970) and possibly other places.

Process.asyncExecute has threading issue

Process.asyncExecute contains this code:

core/Sources/Core/Process+Execute.swift

Lines 99 to 117 in 96ce86e

    
           var running = true 
        
           // readabilityHandler doesn't work on linux, so we are left with this hack 
        
           DispatchQueue.global().async { 
        
               while running { 
        
                   let stdout = stdout.fileHandleForReading.availableData 
        
                   if !stdout.isEmpty { 
        
                       output(.stdout(stdout)) 
        
                   } 
        
               } 
        
           } 
        
           DispatchQueue.global().async { 
        
               while running { 
        
                   let stderr = stderr.fileHandleForReading.availableData 
        
                   if !stderr.isEmpty { 
        
                       output(.stderr(stderr)) 
        
                   } 
        
               } 
        
           }

In particular, there's an unsynchronised, shared variable running that's read and written to from multiple threads. That is undefined behaviour which might amongst random crashes, infinite while running loops (even if running gets set to false) might lead to arbitrary worse behaviour.

This can easily be fixed by using a lock around every use of running. But I'd recommend restructuring the code. At present it keeps three background threads blocked for every execution of a process. Worse, because Dispatch normally uses a finitely sized thread-pool this code might just randomly deadlock. The reason it might randomly deadlock is that it will only finish when this code is executed:

core/Sources/Core/Process+Execute.swift

Lines 135 to 139 in 96ce86e

    
           DispatchQueue.global().async { 
        
               let process = launchProcess(path: program, arguments, stdout: stdout, stderr: stderr) 
        
               process.waitUntilExit() 
        
               running = false 
        
               promise.succeed(result: process.terminationStatus)

But the promise.succeed is inside of a globalQueue.async which needs an available dispatch thread to run. And while it waits for that dispatch thread to become available it blocks to others (to read stderr and stdout). In other words: We need three available dispatch threads to make progress which is an anti-pattern in Dispatch because the thread pool has a finite number of threads so it can totally happen that all of Dispatch's threads are blocked and only become unblocked when more threads become available (which won't happen if the thread pool is exhausted).

threading issues

at least the following tests experience thread unsafety:

AsyncTests.AsyncTests testSyncFlatten
CoreTests.CoreTests testProcessAsyncExecute
CoreTests.CoreTests testProcessExecute
...

$ swift test --sanitize=thread
[146/146] Linking CorePackageTests
Test Suite 'All tests' started at 2019-09-09 9:48:05.465 pm
Test Suite 'CorePackageTests.xctest' started at 2019-09-09 9:48:05.465 pm
Test Suite 'AsyncTests' started at 2019-09-09 9:48:05.466 pm
Test Case '-[AsyncTests.AsyncTests testFlatten]' started.
Test Case '-[AsyncTests.AsyncTests testFlatten]' passed (0.102 seconds).
Test Case '-[AsyncTests.AsyncTests testFlattenEmpty]' started.
Test Case '-[AsyncTests.AsyncTests testFlattenEmpty]' passed (0.001 seconds).
Test Case '-[AsyncTests.AsyncTests testFlattenFail]' started.
Test Case '-[AsyncTests.AsyncTests testFlattenFail]' passed (0.001 seconds).
Test Case '-[AsyncTests.AsyncTests testFlattenPerformance]' started.
/Users/johannes/extsrc/core/Tests/AsyncTests/AsyncTests.swift:73: Test Case '-[AsyncTests.AsyncTests testFlattenPerformance]' measured [Time, seconds] average: 2.042, relative standard deviation: 9.565%, values: [2.385000, 2.420854, 2.106240, 1.999354, 1.911730, 2.019448, 1.822433, 1.895233, 1.904915, 1.951264], performanceMetricID:com.apple.XCTPerformanceMetric_WallClockTime, baselineName: "", baselineAverage: , maxPercentRegression: 10.000%, maxPercentRelativeStandardDeviation: 10.000%, maxRegression: 0.100, maxStandardDeviation: 0.100
Test Case '-[AsyncTests.AsyncTests testFlattenPerformance]' passed (24.367 seconds).
Test Case '-[AsyncTests.AsyncTests testFlattenStackOverflow]' started.
Test Case '-[AsyncTests.AsyncTests testFlattenStackOverflow]' passed (0.093 seconds).
Test Case '-[AsyncTests.AsyncTests testFlattenStress]' started.
Test Case '-[AsyncTests.AsyncTests testFlattenStress]' passed (18.868 seconds).
Test Case '-[AsyncTests.AsyncTests testSyncFlatten]' started.
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f01758 by thread T5:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25126c)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #5 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:523904 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:523904 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f01758 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2dd)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:629 (CorePackageTests:x86_64+0x2573b1)
    #4 EventLoopFuture.do(_:) Future+DoCatch.swift:14 (CorePackageTests:x86_64+0x4056)
    #5 handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:18 (CorePackageTests:x86_64+0x5490)
    #6 Collection.syncFlatten<A>(on:) Future+Flatten.swift:34 (CorePackageTests:x86_64+0x4fa8)
    #7 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #8 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #9 __invoking___ <null>:523904 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f01720 allocated by main thread:
    #0 malloc <null>:523936 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:523936 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:89 (CorePackageTests:x86_64+0x258f7)
    #7 partial apply for closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26a17)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned EventLoopFuture<Int>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x25fa6)
    #9 partial apply for thunk for @escaping @callee_guaranteed () -> (@owned EventLoopFuture<Int>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x26ac7)
    #10 thunk for @escaping @callee_guaranteed () -> (@out EventLoopFuture<A1>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x5dc3)
    #11 partial apply for thunk for @escaping @callee_guaranteed () -> (@out EventLoopFuture<A1>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x5f0d)
    #12 handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:18 (CorePackageTests:x86_64+0x530c)
    #13 Collection.syncFlatten<A>(on:) Future+Flatten.swift:34 (CorePackageTests:x86_64+0x4fa8)
    #14 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #15 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #16 __invoking___ <null>:523936 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T5 (tid=826541, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f01760 by thread T5:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25128f)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #5 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:523904 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:523904 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f01760 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2fb)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:629 (CorePackageTests:x86_64+0x2573b1)
    #4 EventLoopFuture.do(_:) Future+DoCatch.swift:14 (CorePackageTests:x86_64+0x4056)
    #5 handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:18 (CorePackageTests:x86_64+0x5490)
    #6 Collection.syncFlatten<A>(on:) Future+Flatten.swift:34 (CorePackageTests:x86_64+0x4fa8)
    #7 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #8 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #9 __invoking___ <null>:523904 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f01720 allocated by main thread:
    #0 malloc <null>:523936 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:523936 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:89 (CorePackageTests:x86_64+0x258f7)
    #7 partial apply for closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26a17)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned EventLoopFuture<Int>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x25fa6)
    #9 partial apply for thunk for @escaping @callee_guaranteed () -> (@owned EventLoopFuture<Int>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x26ac7)
    #10 thunk for @escaping @callee_guaranteed () -> (@out EventLoopFuture<A1>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x5dc3)
    #11 partial apply for thunk for @escaping @callee_guaranteed () -> (@out EventLoopFuture<A1>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x5f0d)
    #12 handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:18 (CorePackageTests:x86_64+0x530c)
    #13 Collection.syncFlatten<A>(on:) Future+Flatten.swift:34 (CorePackageTests:x86_64+0x4fa8)
    #14 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #15 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #16 __invoking___ <null>:523936 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T5 (tid=826541, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f01768 by thread T5:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x2512b3)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #5 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:523904 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:523904 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f01768 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:59 (CorePackageTests:x86_64+0x24e693)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.whenFailure(_:) EventLoopFuture.swift:648 (CorePackageTests:x86_64+0x2595ce)
    #4 EventLoopFuture.catch(_:) Future+DoCatch.swift:29 (CorePackageTests:x86_64+0x4133)
    #5 handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:25 (CorePackageTests:x86_64+0x558f)
    #6 Collection.syncFlatten<A>(on:) Future+Flatten.swift:34 (CorePackageTests:x86_64+0x4fa8)
    #7 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #8 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #9 __invoking___ <null>:523904 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f01720 allocated by main thread:
    #0 malloc <null>:523936 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:523936 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:89 (CorePackageTests:x86_64+0x258f7)
    #7 partial apply for closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26a17)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned EventLoopFuture<Int>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x25fa6)
    #9 partial apply for thunk for @escaping @callee_guaranteed () -> (@owned EventLoopFuture<Int>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x26ac7)
    #10 thunk for @escaping @callee_guaranteed () -> (@out EventLoopFuture<A1>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x5dc3)
    #11 partial apply for thunk for @escaping @callee_guaranteed () -> (@out EventLoopFuture<A1>, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x5f0d)
    #12 handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:18 (CorePackageTests:x86_64+0x530c)
    #13 Collection.syncFlatten<A>(on:) Future+Flatten.swift:34 (CorePackageTests:x86_64+0x4fa8)
    #14 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #15 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #16 __invoking___ <null>:523936 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T5 (tid=826541, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b140000d4b8 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25126c)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:23 (CorePackageTests:x86_64+0x5c86)
    #5 partial apply for closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) <compiler-generated> (CorePackageTests:x86_64+0x67e1)
    #6 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #7 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #9 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #10 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #11 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #12 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #13 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #14 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #15 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #16 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #17 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #18 __tsan::invoke_and_release_block(void*) <null>:1593392 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #19 _dispatch_client_callout <null>:1593392 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b140000d4b8 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2dd)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:818 (CorePackageTests:x86_64+0x25ddb8)
    #4 AsyncTests.testSyncFlatten() AsyncTests.swift:101 (CorePackageTests:x86_64+0x2426e)
    #5 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #6 __invoking___ <null>:1593392 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b140000d480 allocated by main thread:
    #0 malloc <null>:1593424 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1593424 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 Collection.syncFlatten<A>(on:) Future+Flatten.swift:10 (CorePackageTests:x86_64+0x4a91)
    #7 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #8 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #9 __invoking___ <null>:1593424 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b140000d4c0 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25128f)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:23 (CorePackageTests:x86_64+0x5c86)
    #5 partial apply for closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) <compiler-generated> (CorePackageTests:x86_64+0x67e1)
    #6 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #7 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #9 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #10 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #11 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #12 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #13 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #14 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #15 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #16 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #17 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #18 __tsan::invoke_and_release_block(void*) <null>:1593392 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #19 _dispatch_client_callout <null>:1593392 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b140000d4c0 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2fb)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:818 (CorePackageTests:x86_64+0x25ddb8)
    #4 AsyncTests.testSyncFlatten() AsyncTests.swift:101 (CorePackageTests:x86_64+0x2426e)
    #5 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #6 __invoking___ <null>:1593392 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b140000d480 allocated by main thread:
    #0 malloc <null>:1593424 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1593424 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 Collection.syncFlatten<A>(on:) Future+Flatten.swift:10 (CorePackageTests:x86_64+0x4a91)
    #7 AsyncTests.testSyncFlatten() AsyncTests.swift:100 (CorePackageTests:x86_64+0x240c7)
    #8 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #9 __invoking___ <null>:1593424 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0c00060588 by thread T13:
    #0 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ab2)
    #1 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #2 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #3 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #4 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #5 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #6 closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:23 (CorePackageTests:x86_64+0x5c86)
    #7 partial apply for closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) <compiler-generated> (CorePackageTests:x86_64+0x67e1)
    #8 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #9 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #10 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #11 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #12 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #13 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #14 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #15 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #16 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #17 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #18 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #19 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #20 __tsan::invoke_and_release_block(void*) <null>:1592224 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #21 _dispatch_client_callout <null>:1592224 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0c00060588 by main thread:
    #0 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x343609)
    #1 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 AsyncTests.testSyncFlatten() AsyncTests.swift:101 (CorePackageTests:x86_64+0x2426e)
    #4 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #5 __invoking___ <null>:1592224 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 40 at 0x7b0c00060570 allocated by main thread:
    #0 malloc <null>:1592256 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1592256 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 AsyncTests.testSyncFlatten() AsyncTests.swift:101 (CorePackageTests:x86_64+0x2426e)
    #4 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #5 __invoking___ <null>:1592256 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:121 in ConditionLock.lock()
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0800026db0 by thread T13:
    #0 Lock.lock() lock.swift:55 (CorePackageTests:x86_64+0x342cbe)
    #1 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ac3)
    #2 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #3 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #4 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #5 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #6 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #7 closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) Future+Flatten.swift:23 (CorePackageTests:x86_64+0x5c86)
    #8 partial apply for closure #1 in handle #1 <A><A1>(_:) in Collection.syncFlatten<A>(on:) <compiler-generated> (CorePackageTests:x86_64+0x67e1)
    #9 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #10 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #11 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #12 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #13 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #14 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #15 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #16 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #17 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #18 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:93 (CorePackageTests:x86_64+0x25cda)
    #19 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #20 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #21 __tsan::invoke_and_release_block(void*) <null>:1592096 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #22 _dispatch_client_callout <null>:1592096 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0800026db0 by main thread:
    #0 Lock.init() lock.swift:36 (CorePackageTests:x86_64+0x34298f)
    #1 Lock.__allocating_init() lock.swift (CorePackageTests:x86_64+0x342854)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 AsyncTests.testSyncFlatten() AsyncTests.swift:101 (CorePackageTests:x86_64+0x2426e)
    #6 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #7 __invoking___ <null>:1592096 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 24 at 0x7b0800026da0 allocated by main thread:
    #0 malloc <null>:1592128 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1592128 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 AsyncTests.testSyncFlatten() AsyncTests.swift:101 (CorePackageTests:x86_64+0x2426e)
    #6 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #7 __invoking___ <null>:1592128 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:55 in Lock.lock()
==================
==================
WARNING: ThreadSanitizer: Swift access race (pid=12902)
  Read of size 8 at 0x7b080001b350 by main thread:
    #0 implicit closure #2 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x261cf)
    #1 partial apply for implicit closure #2 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2623b)
    #2 thunk for @callee_guaranteed () -> (@owned [Int], @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x21a46)
    #3 thunk for @callee_guaranteed () -> (@owned [Int], @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0x262b7)
    #4 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null> (libswiftXCTest.dylib:x86_64+0xa083)
    #5 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #6 __invoking___ <null> (CoreFoundation:x86_64h+0x4aa1b)

  Previous modifying access of Swift variable at 0x7b080001b350 by thread T13:
    #0 closure #1 in closure #1 in AsyncTests.testSyncFlatten() AsyncTests.swift:94 (CorePackageTests:x86_64+0x25d37)
    #1 partial apply for closure #1 in closure #1 in AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x2c1ff)
    #2 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #3 __tsan::invoke_and_release_block(void*) <null> (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #4 _dispatch_client_callout <null> (libdispatch.dylib:x86_64+0x34dd)

  Location is heap block of size 24 at 0x7b080001b340 allocated by main thread:
    #0 malloc <null> (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null> (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 @objc AsyncTests.testSyncFlatten() <compiler-generated> (CorePackageTests:x86_64+0x26b77)
    #3 __invoking___ <null> (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: Swift access race <compiler-generated> in implicit closure #2 in AsyncTests.testSyncFlatten()
==================
Test Case '-[AsyncTests.AsyncTests testSyncFlatten]' passed (1.644 seconds).
Test Case '-[AsyncTests.AsyncTests testVariadicMap]' started.
Test Case '-[AsyncTests.AsyncTests testVariadicMap]' passed (0.001 seconds).
Test Suite 'AsyncTests' passed at 2019-09-09 9:48:50.542 pm.
	 Executed 8 tests, with 0 failures (0 unexpected) in 45.076 (45.077) seconds
Test Suite 'ByteBufferPeekTests' started at 2019-09-09 9:48:50.543 pm
Test Case '-[BitsTests.ByteBufferPeekTests testPeekBinaryFloatingPoint]' started.
Test Case '-[BitsTests.ByteBufferPeekTests testPeekBinaryFloatingPoint]' passed (0.001 seconds).
Test Case '-[BitsTests.ByteBufferPeekTests testPeekBytes]' started.
Test Case '-[BitsTests.ByteBufferPeekTests testPeekBytes]' passed (0.001 seconds).
Test Case '-[BitsTests.ByteBufferPeekTests testPeekData]' started.
Test Case '-[BitsTests.ByteBufferPeekTests testPeekData]' passed (0.001 seconds).
Test Case '-[BitsTests.ByteBufferPeekTests testPeekFirstByte]' started.
Test Case '-[BitsTests.ByteBufferPeekTests testPeekFirstByte]' passed (0.001 seconds).
Test Case '-[BitsTests.ByteBufferPeekTests testPeekFixedWidthInteger]' started.
Test Case '-[BitsTests.ByteBufferPeekTests testPeekFixedWidthInteger]' passed (0.001 seconds).
Test Case '-[BitsTests.ByteBufferPeekTests testPeekString]' started.
Test Case '-[BitsTests.ByteBufferPeekTests testPeekString]' passed (0.001 seconds).
Test Suite 'ByteBufferPeekTests' passed at 2019-09-09 9:48:50.548 pm.
	 Executed 6 tests, with 0 failures (0 unexpected) in 0.005 (0.005) seconds
Test Suite 'ByteBufferRequireTests' started at 2019-09-09 9:48:50.548 pm
Test Case '-[BitsTests.ByteBufferRequireTests testRequireBinaryFloatingPoint]' started.
Test Case '-[BitsTests.ByteBufferRequireTests testRequireBinaryFloatingPoint]' passed (0.003 seconds).
Test Case '-[BitsTests.ByteBufferRequireTests testRequireData]' started.
Test Case '-[BitsTests.ByteBufferRequireTests testRequireData]' passed (0.002 seconds).
Test Case '-[BitsTests.ByteBufferRequireTests testRequireFixedWidthInteger]' started.
Test Case '-[BitsTests.ByteBufferRequireTests testRequireFixedWidthInteger]' passed (0.002 seconds).
Test Case '-[BitsTests.ByteBufferRequireTests testRequireString]' started.
Test Case '-[BitsTests.ByteBufferRequireTests testRequireString]' passed (0.002 seconds).
Test Suite 'ByteBufferRequireTests' passed at 2019-09-09 9:48:50.558 pm.
	 Executed 4 tests, with 0 failures (0 unexpected) in 0.009 (0.009) seconds
Test Suite 'CoreTests' started at 2019-09-09 9:48:50.558 pm
Test Case '-[CoreTests.CoreTests testBase64]' started.
Test Case '-[CoreTests.CoreTests testBase64]' passed (0.001 seconds).
Test Case '-[CoreTests.CoreTests testBase64URL]' started.
Test Case '-[CoreTests.CoreTests testBase64URL]' passed (0.001 seconds).
Test Case '-[CoreTests.CoreTests testBase64URLEscaping]' started.
Test Case '-[CoreTests.CoreTests testBase64URLEscaping]' passed (0.003 seconds).
Test Case '-[CoreTests.CoreTests testHeaderValue]' started.
Test Case '-[CoreTests.CoreTests testHeaderValue]' passed (0.002 seconds).
Test Case '-[CoreTests.CoreTests testHexEncodedString]' started.
Test Case '-[CoreTests.CoreTests testHexEncodedString]' passed (0.000 seconds).
Test Case '-[CoreTests.CoreTests testProcessAsyncExecute]' started.
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Write of size 1 at 0x7b0800010130 by thread T15:
    #0 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:138 (CorePackageTests:x86_64+0xd765c)
    #1 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #2 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #3 __tsan::invoke_and_release_block(void*) <null>:6429216 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #4 _dispatch_client_callout <null>:6429216 (libdispatch.dylib:x86_64+0x34dd)

  Previous read of size 1 at 0x7b0800010130 by thread T5:
    [failed to restore the stack]

  Location is heap block of size 17 at 0x7b0800010120 allocated by main thread:
    #0 malloc <null>:6429248 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:6429248 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:75 (CorePackageTests:x86_64+0xd6bad)
    #3 CoreTests.testProcessAsyncExecute() CoreTests.swift:17 (CorePackageTests:x86_64+0xde260)
    #4 @objc CoreTests.testProcessAsyncExecute() <compiler-generated> (CorePackageTests:x86_64+0xdf647)
    #5 __invoking___ <null>:6429248 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T15 (tid=826982, running) is a GCD worker thread

  Thread T5 (tid=826541, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race Process+Execute.swift:138 in closure #3 in static NSTask.asyncExecute(_:_:on:_:)
==================
Test Case '-[CoreTests.CoreTests testProcessAsyncExecute]' passed (0.077 seconds).
Test Case '-[CoreTests.CoreTests testProcessExecute]' started.
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f59638 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25126c)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:1598544 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:1598544 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f59638 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2dd)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:818 (CorePackageTests:x86_64+0x25ddb8)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #6 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #7 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #8 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #9 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1598544 (libswiftXCTest.dylib:x86_64+0xa083)
    #10 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #11 __invoking___ <null>:1598544 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f59600 allocated by main thread:
    #0 malloc <null>:1598576 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1598576 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #10 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #11 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #12 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1598576 (libswiftXCTest.dylib:x86_64+0xa083)
    #13 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #14 __invoking___ <null>:1598576 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f59640 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25128f)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:1598544 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:1598544 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f59640 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2fb)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:818 (CorePackageTests:x86_64+0x25ddb8)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #6 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #7 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #8 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #9 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1598544 (libswiftXCTest.dylib:x86_64+0xa083)
    #10 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #11 __invoking___ <null>:1598544 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f59600 allocated by main thread:
    #0 malloc <null>:1598576 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1598576 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #10 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #11 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #12 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1598576 (libswiftXCTest.dylib:x86_64+0xa083)
    #13 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #14 __invoking___ <null>:1598576 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0c0003db48 by thread T13:
    #0 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ab2)
    #1 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #2 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #3 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #4 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #5 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #6 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #7 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #8 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #9 __tsan::invoke_and_release_block(void*) <null>:1597376 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #10 _dispatch_client_callout <null>:1597376 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0c0003db48 by main thread:
    #0 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x343609)
    #1 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #5 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #6 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #7 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #8 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1597376 (libswiftXCTest.dylib:x86_64+0xa083)
    #9 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #10 __invoking___ <null>:1597376 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 40 at 0x7b0c0003db30 allocated by main thread:
    #0 malloc <null>:1597408 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1597408 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #5 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #6 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #7 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #8 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1597408 (libswiftXCTest.dylib:x86_64+0xa083)
    #9 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #10 __invoking___ <null>:1597408 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:121 in ConditionLock.lock()
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b08000370f0 by thread T13:
    #0 Lock.lock() lock.swift:55 (CorePackageTests:x86_64+0x342cbe)
    #1 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ac3)
    #2 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #3 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #4 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #5 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #6 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #7 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #8 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #9 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #10 __tsan::invoke_and_release_block(void*) <null>:1597248 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #11 _dispatch_client_callout <null>:1597248 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b08000370f0 by main thread:
    #0 Lock.init() lock.swift:36 (CorePackageTests:x86_64+0x34298f)
    #1 Lock.__allocating_init() lock.swift (CorePackageTests:x86_64+0x342854)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #6 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #7 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #8 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #9 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #10 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1597248 (libswiftXCTest.dylib:x86_64+0xa083)
    #11 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #12 __invoking___ <null>:1597248 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 24 at 0x7b08000370e0 allocated by main thread:
    #0 malloc <null>:1597280 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1597280 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #6 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #7 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #8 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #9 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #10 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null>:1597280 (libswiftXCTest.dylib:x86_64+0xa083)
    #11 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #12 __invoking___ <null>:1597280 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:55 in Lock.lock()
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b080001fdb0 by main thread:
    #0 static NSTask.execute(_:_:) Process+Execute.swift:56 (CorePackageTests:x86_64+0xd4a8e)
    #1 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #2 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #3 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #4 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #5 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null> (libswiftXCTest.dylib:x86_64+0xa083)
    #6 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #7 __invoking___ <null> (CoreFoundation:x86_64h+0x4aa1b)

  Previous write of size 1 at 0x7b080001fdb0 by thread T17:
    [failed to restore the stack]

  Location is heap block of size 32 at 0x7b080001fda0 allocated by main thread:
    #0 malloc <null> (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null> (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #3 implicit closure #1 in CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd0d1)
    #4 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #5 partial apply for thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0xdd247)
    #6 closure #1 in XCTAssertEqual<A>(_:_:_:file:line:) <null> (libswiftXCTest.dylib:x86_64+0xa083)
    #7 @objc CoreTests.testProcessExecute() <compiler-generated> (CorePackageTests:x86_64+0xdd3d7)
    #8 __invoking___ <null> (CoreFoundation:x86_64h+0x4aa1b)

  Thread T17 (tid=826985, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race Process+Execute.swift:56 in static NSTask.execute(_:_:)
==================
Test Case '-[CoreTests.CoreTests testProcessExecute]' passed (0.084 seconds).
Test Case '-[CoreTests.CoreTests testProcessExecuteCurl]' started.
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Write of size 1 at 0x7b080003b850 by thread T18:
    #0 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:138 (CorePackageTests:x86_64+0xd765c)
    #1 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #2 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #3 __tsan::invoke_and_release_block(void*) <null>:8038944 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #4 _dispatch_client_callout <null>:8038944 (libdispatch.dylib:x86_64+0x34dd)

  Previous read of size 1 at 0x7b080003b850 by thread T13:
    #0 closure #1 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:103 (CorePackageTests:x86_64+0xd6dd6)
    #1 partial apply for closure #1 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8c03)
    #2 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #3 __tsan::invoke_and_release_block(void*) <null>:8038944 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #4 _dispatch_client_callout <null>:8038944 (libdispatch.dylib:x86_64+0x34dd)

  Location is heap block of size 17 at 0x7b080003b840 allocated by main thread:
    #0 malloc <null>:8038976 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:8038976 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #4 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #5 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #6 __invoking___ <null>:8038976 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T18 (tid=826986, running) is a GCD worker thread

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race Process+Execute.swift:138 in closure #3 in static NSTask.asyncExecute(_:_:on:_:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f596d8 by thread T18:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25126c)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:8037456 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:8037456 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f596d8 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2dd)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:818 (CorePackageTests:x86_64+0x25ddb8)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #6 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #7 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #8 __invoking___ <null>:8037456 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f596a0 allocated by main thread:
    #0 malloc <null>:8037488 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:8037488 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #10 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #11 __invoking___ <null>:8037488 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T18 (tid=826986, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f596e0 by thread T18:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25128f)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:8037456 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:8037456 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f596e0 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2fb)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:818 (CorePackageTests:x86_64+0x25ddb8)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #6 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #7 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #8 __invoking___ <null>:8037456 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f596a0 allocated by main thread:
    #0 malloc <null>:8037488 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:8037488 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #10 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #11 __invoking___ <null>:8037488 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T18 (tid=826986, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0c00040ab8 by thread T18:
    #0 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ab2)
    #1 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #2 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #3 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #4 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #5 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #6 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #7 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #8 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #9 __tsan::invoke_and_release_block(void*) <null>:8036288 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #10 _dispatch_client_callout <null>:8036288 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0c00040ab8 by main thread:
    #0 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x343609)
    #1 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #5 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #6 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #7 __invoking___ <null>:8036288 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 40 at 0x7b0c00040aa0 allocated by main thread:
    #0 malloc <null>:8036320 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:8036320 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #5 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #6 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #7 __invoking___ <null>:8036320 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T18 (tid=826986, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:121 in ConditionLock.lock()
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0800034f30 by thread T18:
    #0 Lock.lock() lock.swift:55 (CorePackageTests:x86_64+0x342cbe)
    #1 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ac3)
    #2 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #3 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #4 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #5 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #6 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #7 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #8 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #9 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #10 __tsan::invoke_and_release_block(void*) <null>:8036160 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #11 _dispatch_client_callout <null>:8036160 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0800034f30 by main thread:
    #0 Lock.init() lock.swift:36 (CorePackageTests:x86_64+0x34298f)
    #1 Lock.__allocating_init() lock.swift (CorePackageTests:x86_64+0x342854)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #6 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #7 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #8 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #9 __invoking___ <null>:8036160 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 24 at 0x7b0800034f20 allocated by main thread:
    #0 malloc <null>:8036192 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:8036192 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #6 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #7 CoreTests.testProcessExecuteCurl() CoreTests.swift:10 (CorePackageTests:x86_64+0xdd741)
    #8 @objc CoreTests.testProcessExecuteCurl() <compiler-generated> (CorePackageTests:x86_64+0xdde27)
    #9 __invoking___ <null>:8036192 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T18 (tid=826986, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:55 in Lock.lock()
==================
Test Case '-[CoreTests.CoreTests testProcessExecuteCurl]' passed (0.796 seconds).
Test Case '-[CoreTests.CoreTests testProcessExecuteMissing]' started.
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f597c8 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25126c)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:1598544 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:1598544 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f597c8 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2dd)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:629 (CorePackageTests:x86_64+0x2573b1)
    #4 EventLoopFuture.do(_:) Future+DoCatch.swift:14 (CorePackageTests:x86_64+0x4056)
    #5 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:48 (CorePackageTests:x86_64+0x7fe7)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #10 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #12 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1598544 (libswiftXCTest.dylib:x86_64+0xffeb)
    #13 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #14 __invoking___ <null>:1598544 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f59790 allocated by main thread:
    #0 malloc <null>:1598576 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1598576 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:144 (CorePackageTests:x86_64+0xd659c)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1598576 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1598576 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f597d0 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25128f)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:1598544 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:1598544 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f597d0 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:54 (CorePackageTests:x86_64+0x24e2fb)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:629 (CorePackageTests:x86_64+0x2573b1)
    #4 EventLoopFuture.do(_:) Future+DoCatch.swift:14 (CorePackageTests:x86_64+0x4056)
    #5 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:48 (CorePackageTests:x86_64+0x7fe7)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #10 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #12 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1598544 (libswiftXCTest.dylib:x86_64+0xffeb)
    #13 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #14 __invoking___ <null>:1598544 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f59790 allocated by main thread:
    #0 malloc <null>:1598576 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1598576 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:144 (CorePackageTests:x86_64+0xd659c)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1598576 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1598576 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f597d8 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x2512b3)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #4 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #5 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #6 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #7 __tsan::invoke_and_release_block(void*) <null>:1598544 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #8 _dispatch_client_callout <null>:1598544 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f597d8 by main thread:
    #0 CallbackList.append(_:) EventLoopFuture.swift:59 (CorePackageTests:x86_64+0x24e693)
    #1 EventLoopFuture._addCallback(_:) EventLoopFuture.swift:594 (CorePackageTests:x86_64+0x255176)
    #2 EventLoopFuture._whenComplete(_:) EventLoopFuture.swift:603 (CorePackageTests:x86_64+0x255567)
    #3 EventLoopFuture.whenFailure(_:) EventLoopFuture.swift:648 (CorePackageTests:x86_64+0x2595ce)
    #4 EventLoopFuture.catch(_:) Future+DoCatch.swift:29 (CorePackageTests:x86_64+0x4133)
    #5 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:55 (CorePackageTests:x86_64+0x80b4)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #7 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #9 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #10 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #12 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1598544 (libswiftXCTest.dylib:x86_64+0xffeb)
    #13 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #14 __invoking___ <null>:1598544 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f59790 allocated by main thread:
    #0 malloc <null>:1598576 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1598576 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:134 (CorePackageTests:x86_64+0xd5dea)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:144 (CorePackageTests:x86_64+0xd659c)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1598576 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1598576 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f02698 by thread T13:
    #0 EventLoopPromise._resolve(value:) EventLoopFuture.swift:191 (CorePackageTests:x86_64+0x2505b4)
    #1 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #2 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #3 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #4 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #5 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #6 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #7 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #8 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #9 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #10 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #11 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #12 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #13 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #14 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #15 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #16 __tsan::invoke_and_release_block(void*) <null>:1596112 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #17 _dispatch_client_callout <null>:1596112 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f02698 by main thread:
    #0 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:360 (CorePackageTests:x86_64+0x25235a)
    #1 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1596112 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1596112 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f02670 allocated by main thread:
    #0 malloc <null>:1596144 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1596144 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1596144 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1596144 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:191 in EventLoopPromise._resolve(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f026a0 by thread T13:
    #0 EventLoopPromise._resolve(value:) EventLoopFuture.swift:191 (CorePackageTests:x86_64+0x2505d1)
    #1 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #2 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #3 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #4 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #5 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #6 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #7 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #8 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #9 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #10 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #11 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #12 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #13 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #14 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #15 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #16 __tsan::invoke_and_release_block(void*) <null>:1596112 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #17 _dispatch_client_callout <null>:1596112 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f026a0 by main thread:
    #0 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:360 (CorePackageTests:x86_64+0x252386)
    #1 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1596112 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1596112 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f02670 allocated by main thread:
    #0 malloc <null>:1596144 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1596144 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1596144 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1596144 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:191 in EventLoopPromise._resolve(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f02690 by thread T13:
    #0 EventLoopFuture.value.didset EventLoopFuture.swift:338 (CorePackageTests:x86_64+0x251722)
    #1 EventLoopFuture.value.setter <compiler-generated> (CorePackageTests:x86_64+0x251aac)
    #2 EventLoopFuture._setValue(value:) EventLoopFuture.swift:677 (CorePackageTests:x86_64+0x2511e2)
    #3 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #4 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #5 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #6 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #7 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #8 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #9 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #10 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #11 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #12 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #13 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #14 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #15 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #16 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #17 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #18 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #19 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #20 __tsan::invoke_and_release_block(void*) <null>:1594640 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #21 _dispatch_client_callout <null>:1594640 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f02690 by main thread:
    #0 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:362 (CorePackageTests:x86_64+0x25259f)
    #1 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1594640 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1594640 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f02670 allocated by main thread:
    #0 malloc <null>:1594672 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1594672 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1594672 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1594672 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:338 in EventLoopFuture.value.didset
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Atomic write of size 1 at 0x7b0400300120 by thread T13:
    #0 __tsan_atomic8_store <null>:1594160 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x465ac)
    #1 catmc_atomic__Bool_store c-atomics.c:95 (CorePackageTests:x86_64+0x581c4)
    #2 @nonobjc catmc_atomic__Bool_store(_:_:) <compiler-generated> (CorePackageTests:x86_64+0x3300cf)
    #3 thunk for @escaping @callee_guaranteed (@unowned OpaquePointer, @unowned Bool) -> () <compiler-generated> (CorePackageTests:x86_64+0x330973)
    #4 partial apply for thunk for @escaping @callee_guaranteed (@unowned OpaquePointer, @unowned Bool) -> () <compiler-generated> (CorePackageTests:x86_64+0x3422a8)
    #5 UnsafeEmbeddedAtomic.store(_:) atomics.swift:167 (CorePackageTests:x86_64+0x32e960)
    #6 EventLoopFuture.value.didset EventLoopFuture.swift:338 (CorePackageTests:x86_64+0x251749)
    #7 EventLoopFuture.value.setter <compiler-generated> (CorePackageTests:x86_64+0x251aac)
    #8 EventLoopFuture._setValue(value:) EventLoopFuture.swift:677 (CorePackageTests:x86_64+0x2511e2)
    #9 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #10 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #11 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #12 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #13 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #14 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #15 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #16 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #17 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #18 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #19 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #20 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #21 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #22 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #23 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #24 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #25 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #26 __tsan::invoke_and_release_block(void*) <null>:1594160 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #27 _dispatch_client_callout <null>:1594160 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 1 at 0x7b0400300120 by main thread:
    #0 catmc_atomic__Bool_create c-atomics.c:95 (CorePackageTests:x86_64+0x57ea5)
    #1 @nonobjc catmc_atomic__Bool_create(_:) <compiler-generated> (CorePackageTests:x86_64+0x32f4f6)
    #2 thunk for @escaping @callee_guaranteed (@unowned Bool) -> (@unowned OpaquePointer) <compiler-generated> (CorePackageTests:x86_64+0x3302eb)
    #3 partial apply for thunk for @escaping @callee_guaranteed (@unowned Bool) -> (@unowned OpaquePointer) <compiler-generated> (CorePackageTests:x86_64+0x3426a0)
    #4 UnsafeEmbeddedAtomic.init(value:) atomics.swift:48 (CorePackageTests:x86_64+0x32e2cd)
    #5 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:362 (CorePackageTests:x86_64+0x252549)
    #6 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #7 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #8 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #9 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #10 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #11 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #12 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #13 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #14 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #15 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #16 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #17 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #18 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1594160 (libswiftXCTest.dylib:x86_64+0xffeb)
    #19 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #20 __invoking___ <null>:1594160 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 1 at 0x7b0400300120 allocated by main thread:
    #0 malloc <null>:1594192 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 catmc_atomic__Bool_create c-atomics.c:95 (CorePackageTests:x86_64+0x57e88)
    #2 @nonobjc catmc_atomic__Bool_create(_:) <compiler-generated> (CorePackageTests:x86_64+0x32f4f6)
    #3 thunk for @escaping @callee_guaranteed (@unowned Bool) -> (@unowned OpaquePointer) <compiler-generated> (CorePackageTests:x86_64+0x3302eb)
    #4 partial apply for thunk for @escaping @callee_guaranteed (@unowned Bool) -> (@unowned OpaquePointer) <compiler-generated> (CorePackageTests:x86_64+0x3426a0)
    #5 UnsafeEmbeddedAtomic.init(value:) atomics.swift:48 (CorePackageTests:x86_64+0x32e2cd)
    #6 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:362 (CorePackageTests:x86_64+0x252549)
    #7 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #8 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #9 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #10 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #11 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #12 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #13 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #14 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #15 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #16 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #17 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #18 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #19 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1594192 (libswiftXCTest.dylib:x86_64+0xffeb)
    #20 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #21 __invoking___ <null>:1594192 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race c-atomics.c:95 in catmc_atomic__Bool_store
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f026a8 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25126c)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #4 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #5 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #6 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #7 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #9 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #10 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #11 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #12 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #13 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #14 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #15 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #16 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #17 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #18 __tsan::invoke_and_release_block(void*) <null>:1595216 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #19 _dispatch_client_callout <null>:1595216 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f026a8 by main thread:
    #0 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:357 (CorePackageTests:x86_64+0x25226b)
    #1 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1595216 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1595216 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f02670 allocated by main thread:
    #0 malloc <null>:1595248 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1595248 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1595248 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1595248 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f026b0 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x25128f)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #4 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #5 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #6 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #7 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #9 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #10 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #11 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #12 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #13 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #14 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #15 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #16 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #17 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #18 __tsan::invoke_and_release_block(void*) <null>:1595216 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #19 _dispatch_client_callout <null>:1595216 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f026b0 by main thread:
    #0 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:357 (CorePackageTests:x86_64+0x252297)
    #1 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1595216 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1595216 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f02670 allocated by main thread:
    #0 malloc <null>:1595248 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1595248 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1595248 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1595248 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b1400f026b8 by thread T13:
    #0 EventLoopFuture._setValue(value:) EventLoopFuture.swift:678 (CorePackageTests:x86_64+0x2512b3)
    #1 EventLoopPromise._setValue(value:) EventLoopFuture.swift:206 (CorePackageTests:x86_64+0x250b99)
    #2 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x250667)
    #3 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #4 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #5 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #6 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #7 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #8 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #9 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #10 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #11 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #12 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #13 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #14 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #15 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #16 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #17 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #18 __tsan::invoke_and_release_block(void*) <null>:1595216 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #19 _dispatch_client_callout <null>:1595216 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b1400f026b8 by main thread:
    #0 EventLoopFuture.init(eventLoop:value:file:line:) EventLoopFuture.swift:357 (CorePackageTests:x86_64+0x2522c4)
    #1 EventLoopFuture.__allocating_init(eventLoop:value:file:line:) EventLoopFuture.swift (CorePackageTests:x86_64+0x251e10)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1595216 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1595216 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 80 at 0x7b1400f02670 allocated by main thread:
    #0 malloc <null>:1595248 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1595248 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.__allocating_init(eventLoop:file:line:) EventLoopFuture.swift:373 (CorePackageTests:x86_64+0x2501fc)
    #3 EventLoopPromise.init(eventLoop:file:line:) EventLoopFuture.swift:163 (CorePackageTests:x86_64+0x24fee1)
    #4 EventLoop.newPromise<A>(of:file:line:) EventLoop.swift:322 (CorePackageTests:x86_64+0x2356ff)
    #5 EventLoop.newPromise<A>(_:file:line:) Async+NIO.swift:13 (CorePackageTests:x86_64+0x152f)
    #6 EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:46 (CorePackageTests:x86_64+0x7eda)
    #7 static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:150 (CorePackageTests:x86_64+0xd680e)
    #8 static NSTask.execute(_:_:) Process+Execute.swift:45 (CorePackageTests:x86_64+0xd439f)
    #9 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #10 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #11 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #12 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #13 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1595248 (libswiftXCTest.dylib:x86_64+0xffeb)
    #14 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #15 __invoking___ <null>:1595248 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race EventLoopFuture.swift:678 in EventLoopFuture._setValue(value:)
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0c00057fa8 by thread T13:
    #0 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ab2)
    #1 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #2 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #3 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #4 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #5 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #6 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #7 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #8 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #9 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #10 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #11 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #12 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #13 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #14 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #15 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #16 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #17 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #18 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #19 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #20 __tsan::invoke_and_release_block(void*) <null>:1594048 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #21 _dispatch_client_callout <null>:1594048 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0c00057fa8 by main thread:
    #0 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x343609)
    #1 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #5 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #6 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #7 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #8 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1594048 (libswiftXCTest.dylib:x86_64+0xffeb)
    #9 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #10 __invoking___ <null>:1594048 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 40 at 0x7b0c00057f90 allocated by main thread:
    #0 malloc <null>:1594080 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1594080 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #3 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #4 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #5 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #6 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #7 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #8 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1594080 (libswiftXCTest.dylib:x86_64+0xffeb)
    #9 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #10 __invoking___ <null>:1594080 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:121 in ConditionLock.lock()
==================
==================
WARNING: ThreadSanitizer: data race (pid=12902)
  Read of size 8 at 0x7b0800028250 by thread T13:
    #0 Lock.lock() lock.swift:55 (CorePackageTests:x86_64+0x342cbe)
    #1 ConditionLock.lock() lock.swift:121 (CorePackageTests:x86_64+0x343ac3)
    #2 closure #2 in EventLoopFuture.wait(file:line:) EventLoopFuture.swift:819 (CorePackageTests:x86_64+0x25e96c)
    #3 partial apply for closure #2 in EventLoopFuture.wait(file:line:) <compiler-generated> (CorePackageTests:x86_64+0x26458f)
    #4 CallbackList._run() EventLoopFuture.swift:82 (CorePackageTests:x86_64+0x24ef00)
    #5 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #6 EventLoopPromise.fail(error:) EventLoopFuture.swift:179 (CorePackageTests:x86_64+0x250ac6)
    #7 closure #1 in EventLoopFuture.flatMap<A>(to:_:) Future+Map.swift:53 (CorePackageTests:x86_64+0x83a3)
    #8 partial apply for closure #1 in EventLoopFuture.flatMap<A>(to:_:) <compiler-generated> (CorePackageTests:x86_64+0x84c4)
    #9 closure #1 in EventLoopFuture.whenSuccess(_:) EventLoopFuture.swift:631 (CorePackageTests:x86_64+0x259402)
    #10 partial apply for closure #1 in EventLoopFuture.whenSuccess(_:) <compiler-generated> (CorePackageTests:x86_64+0x25cfdf)
    #11 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24e71b)
    #12 thunk for @escaping @callee_guaranteed () -> (@owned CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x26880d)
    #13 thunk for @escaping @callee_guaranteed () -> (@out CallbackList) <compiler-generated> (CorePackageTests:x86_64+0x24dfcb)
    #14 thunk for @escaping @callee_guaranteed () -> (@out CallbackList)partial apply <compiler-generated> (CorePackageTests:x86_64+0x268a5b)
    #15 CallbackList._run() EventLoopFuture.swift:108 (CorePackageTests:x86_64+0x24faf5)
    #16 EventLoopPromise._resolve(value:) EventLoopFuture.swift:192 (CorePackageTests:x86_64+0x2506c5)
    #17 EventLoopPromise.succeed(result:) EventLoopFuture.swift:171 (CorePackageTests:x86_64+0x25045a)
    #18 closure #3 in static NSTask.asyncExecute(_:_:on:_:) Process+Execute.swift:139 (CorePackageTests:x86_64+0xd76b9)
    #19 partial apply for closure #3 in static NSTask.asyncExecute(_:_:on:_:) <compiler-generated> (CorePackageTests:x86_64+0xd8eed)
    #20 thunk for @escaping @callee_guaranteed () -> () <compiler-generated> (CorePackageTests:x86_64+0x25e00)
    #21 __tsan::invoke_and_release_block(void*) <null>:1593920 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x6d65b)
    #22 _dispatch_client_callout <null>:1593920 (libdispatch.dylib:x86_64+0x34dd)

  Previous write of size 8 at 0x7b0800028250 by main thread:
    #0 Lock.init() lock.swift:36 (CorePackageTests:x86_64+0x34298f)
    #1 Lock.__allocating_init() lock.swift (CorePackageTests:x86_64+0x342854)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #6 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #7 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #8 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #9 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #10 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1593920 (libswiftXCTest.dylib:x86_64+0xffeb)
    #11 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #12 __invoking___ <null>:1593920 (CoreFoundation:x86_64h+0x4aa1b)

  Location is heap block of size 24 at 0x7b0800028240 allocated by main thread:
    #0 malloc <null>:1593952 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x4e6ba)
    #1 swift_slowAlloc <null>:1593952 (libswiftCore.dylib:x86_64+0x2cdd98)
    #2 ConditionLock.init(value:) lock.swift:108 (CorePackageTests:x86_64+0x3435bc)
    #3 ConditionLock.__allocating_init(value:) lock.swift (CorePackageTests:x86_64+0x343330)
    #4 EventLoopFuture.wait(file:line:) EventLoopFuture.swift:817 (CorePackageTests:x86_64+0x25dcad)
    #5 static NSTask.execute(_:_:) Process+Execute.swift:52 (CorePackageTests:x86_64+0xd4494)
    #6 static NSTask.execute(_:_:) Process+Execute.swift:27 (CorePackageTests:x86_64+0xd3ef5)
    #7 implicit closure #1 in CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdf9f1)
    #8 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error) <compiler-generated> (CorePackageTests:x86_64+0x1ceb6)
    #9 thunk for @callee_guaranteed () -> (@owned String, @error @owned Error)partial apply <compiler-generated> (CorePackageTests:x86_64+0xdfb67)
    #10 closure #1 in XCTAssertThrowsError<A>(_:_:file:line:_:) <null>:1593952 (libswiftXCTest.dylib:x86_64+0xffeb)
    #11 @objc CoreTests.testProcessExecuteMissing() <compiler-generated> (CorePackageTests:x86_64+0xdfcb7)
    #12 __invoking___ <null>:1593952 (CoreFoundation:x86_64h+0x4aa1b)

  Thread T13 (tid=826938, running) is a GCD worker thread

SUMMARY: ThreadSanitizer: data race lock.swift:55 in Lock.lock()
==================
Test Case '-[CoreTests.CoreTests testProcessExecuteMissing]' passed (0.153 seconds).
Test Suite 'CoreTests' passed at 2019-09-09 9:48:51.677 pm.
	 Executed 9 tests, with 0 failures (0 unexpected) in 1.119 (1.119) seconds
Test Suite 'FooErrorTests' started at 2019-09-09 9:48:51.677 pm
Test Case '-[DebuggingTests.FooErrorTests testCausesAndSuggestions]' started.
Test Case '-[DebuggingTests.FooErrorTests testCausesAndSuggestions]' passed (0.000 seconds).
Test Case '-[DebuggingTests.FooErrorTests testIdentifier]' started.
Test Case '-[DebuggingTests.FooErrorTests testIdentifier]' passed (0.000 seconds).
Test Case '-[DebuggingTests.FooErrorTests testOmitEmptyFields]' started.
Test Case '-[DebuggingTests.FooErrorTests testOmitEmptyFields]' passed (0.002 seconds).
Test Case '-[DebuggingTests.FooErrorTests testPrintable]' started.
⚠️ Foo Error: You do not have a `foo`.
- id: FooError.noFoo

Here are some possible causes: 
- You did not set the flongwaffle.
- The session ended before a `Foo` could be made.
- The universe conspires against us all.
- Computers are hard.

These suggestions could address the issue: 
- You really want to use a `Bar` here.
- Take up the guitar and move to the beach.

Vapor's documentation talks about this: 
- http://documentation.com/Foo
- http://documentation.com/foo/noFoo

Test Case '-[DebuggingTests.FooErrorTests testPrintable]' passed (0.001 seconds).
Test Case '-[DebuggingTests.FooErrorTests testReadableName]' started.
Test Case '-[DebuggingTests.FooErrorTests testReadableName]' passed (0.000 seconds).
Test Suite 'FooErrorTests' passed at 2019-09-09 9:48:51.681 pm.
	 Executed 5 tests, with 0 failures (0 unexpected) in 0.003 (0.004) seconds
Test Suite 'GeneralTests' started at 2019-09-09 9:48:51.681 pm
Test Case '-[DebuggingTests.GeneralTests testBulletedList]' started.
Test Case '-[DebuggingTests.GeneralTests testBulletedList]' passed (0.000 seconds).
Test Case '-[DebuggingTests.GeneralTests testMinimumConformance]' started.
Test Case '-[DebuggingTests.GeneralTests testMinimumConformance]' passed (0.001 seconds).
Test Suite 'GeneralTests' passed at 2019-09-09 9:48:51.682 pm.
	 Executed 2 tests, with 0 failures (0 unexpected) in 0.001 (0.001) seconds
Test Suite 'ReflectableTests' started at 2019-09-09 9:48:51.682 pm
Test Case '-[CoreTests.ReflectableTests testArrayNested]' started.
Test Case '-[CoreTests.ReflectableTests testArrayNested]' passed (0.014 seconds).
Test Case '-[CoreTests.ReflectableTests testCache]' started.
Test Case '-[CoreTests.ReflectableTests testCache]' passed (0.011 seconds).
Test Case '-[CoreTests.ReflectableTests testCaseIterableExtension]' started.
Test Case '-[CoreTests.ReflectableTests testCaseIterableExtension]' passed (0.000 seconds).
Test Case '-[CoreTests.ReflectableTests testCustomCodingKeys]' started.
Test Case '-[CoreTests.ReflectableTests testCustomCodingKeys]' passed (0.002 seconds).
Test Case '-[CoreTests.ReflectableTests testGH112]' started.
Test Case '-[CoreTests.ReflectableTests testGH112]' passed (0.002 seconds).
Test Case '-[CoreTests.ReflectableTests testGH119]' started.
Test Case '-[CoreTests.ReflectableTests testGH119]' passed (0.001 seconds).
Test Case '-[CoreTests.ReflectableTests testNestedStruct]' started.
Test Case '-[CoreTests.ReflectableTests testNestedStruct]' passed (0.016 seconds).
Test Case '-[CoreTests.ReflectableTests testNonOptionalsOnly]' started.
Test Case '-[CoreTests.ReflectableTests testNonOptionalsOnly]' passed (0.003 seconds).
Test Case '-[CoreTests.ReflectableTests testProperties]' started.
Test Case '-[CoreTests.ReflectableTests testProperties]' passed (0.011 seconds).
Test Case '-[CoreTests.ReflectableTests testPropertyA]' started.
Test Case '-[CoreTests.ReflectableTests testPropertyA]' passed (0.001 seconds).
Test Case '-[CoreTests.ReflectableTests testPropertyDepth]' started.
Test Case '-[CoreTests.ReflectableTests testPropertyDepth]' passed (0.002 seconds).
Test Case '-[CoreTests.ReflectableTests testStruct]' started.
Test Case '-[CoreTests.ReflectableTests testStruct]' passed (0.030 seconds).
Test Case '-[CoreTests.ReflectableTests testStructCustomProperties]' started.
Test Case '-[CoreTests.ReflectableTests testStructCustomProperties]' passed (0.001 seconds).
Test Suite 'ReflectableTests' passed at 2019-09-09 9:48:51.776 pm.
	 Executed 13 tests, with 0 failures (0 unexpected) in 0.093 (0.094) seconds
Test Suite 'TraceableTests' started at 2019-09-09 9:48:51.776 pm
Test Case '-[DebuggingTests.TraceableTests testPrintable]' started.
⚠️ [TestError.foo: So we can test stuff] [Possible causes: What do you expect, you're testing errors.] [Suggested fixes: Get a better keyboard to chair interface.]


⚠️ TestError: So we can test stuff
- id: TestError.foo

Here are some possible causes: 
- What do you expect, you're testing errors.

These suggestions could address the issue: 
- Get a better keyboard to chair interface.

Test Case '-[DebuggingTests.TraceableTests testPrintable]' passed (0.003 seconds).
Test Suite 'TraceableTests' passed at 2019-09-09 9:48:51.780 pm.
	 Executed 1 test, with 0 failures (0 unexpected) in 0.003 (0.003) seconds
Test Suite 'CorePackageTests.xctest' passed at 2019-09-09 9:48:51.780 pm.
	 Executed 48 tests, with 0 failures (0 unexpected) in 46.308 (46.314) seconds
Test Suite 'All tests' passed at 2019-09-09 9:48:51.780 pm.
	 Executed 48 tests, with 0 failures (0 unexpected) in 46.308 (46.315) seconds
ThreadSanitizer: reported 31 warnings
Exited with signal code 6

custom Codable `init(from:)` method causing incorrect reflection

Moving vapor/fluent#524 here.

ReflectionKeyedDecoder.decode() is not returning the "truthy" value when the context is active

I think when the context is active, it should return the reflected.1. However currently it returns reflected.0.

    func decode<T>(_ type: T.Type, forKey key: K) throws -> T where T : Decodable {
        if nextIsOptional {
            context.addProperty(type: T?.self, at: codingPath + [key])
            nextIsOptional = false
        } else {
            context.addProperty(type: T.self, at: codingPath + [key])
        }
        if let type = T.self as? AnyReflectionDecodable.Type, let reflected = try? type.anyReflectDecoded() {
            if context.isActive {
                context.activeCodingPath = codingPath + [key]
                return reflected.0 as! T
            }
            return reflected.1 as! T
        } else {
            let decoder = ReflectionDecoder(codingPath: codingPath + [key], context: context)
            return try T(from: decoder)
        }
    }

https://github.com/vapor/core/blob/master/Sources/Core/CodableReflection/ReflectionDecoders.swift#L144

The default implementation of ReflectionDecodable sets the .0 to be falsy value and .1 to be truthy value.
eg.

extension Bool: ReflectionDecodable {
    /// See `ReflectionDecodable.reflectDecoded()` for more information.
    public static func reflectDecoded() -> (Bool, Bool) { return (false, true) }
}

extension FixedWidthInteger {
    /// See `ReflectionDecodable.reflectDecoded()` for more information.
    public static func reflectDecoded() -> (Self, Self) { return (0, 1) }
}

Possibly unbounded recursion in `QueueHandler` could lead to stack overflow

core/Sources/Async/QueueHandler.swift

Line 73 in 92cef89

self.writeOutputIfEnqueued(ctx: ctx)

, writeOutputIfEnqueued calls itself. Unless the compiler can optimize this away as a tail recursion, it could lead to stack overflows if there are very many elements in outputQueue. (Still unlikely, but not sure if it's worth taking any risks with that.)

DirectoryConfig.workDir not working with Xcode 11 integration with SPM

In Xcode 11, if you open the Package.swift file directly (to get a new Xcode 11 Swift Package project) uses of DirectoryConfig.workDir fail, probably due to DerviedData being in a new place. This breaks .env and Leaf etc.

Current workaround - use swift package generate-xcodeproj and use the generated project

RFC1123

Remove RFC1123 date formatting from Vapor into Core

"Free" ReflectionDecodable conformance for CaseIterable enums

extension ReflectionDecodable where Self: CaseIterable {

    public static func reflectDecoded() throws -> (Self, Self) {
        guard !allCases.isEmpty, allCases.count > 1 else { throw ReflectionError() }
        guard let first = allCases.first, let last = allCases.last else { throw ReflectionError() }
        return (first, last)
    }
}

4.2 PR ?

LazyFuture should support throwing

Currently, LazyFuture is defined as:

public typealias LazyFuture<T> = () -> (Future<T>)

In order to support chaining various NIO/Async functions, it should support throwing:

public typealias LazyFuture<T> = () throws -> (Future<T>)

Set should conform to ReflectionDecodable

This would allow Fluent model properties to be Set (not only Array):

extension Set: ReflectionDecodable {
    /// See `ReflectionDecodable.reflectDecoded()` for more information.
    public static func reflectDecoded() throws -> (Set<Element>, Set<Element>) {
        let reflected = try [Element].reflectDecoded()

        return (Set(reflected.0), Set(reflected.1))
    }

    /// See `ReflectionDecodable.reflectDecodedIsLeft(_:)` for more information.
    public static func reflectDecodedIsLeft(_ item: Set<Element>) throws -> Bool {

        return try [Element].reflectDecodedIsLeft(Array(item))
    }
}

deprecate Async

A goal for version 4 of this package is to move all helpers in the Async module upstream and remove the dependency on Swift NIO here. The reasoning is:

Core should be a lightweight package that all of Vapor's packages rely on (including NIO makes that quite heavy).
Vapor should minimize the amount of API on top of NIO to make the ecosystem feel more cohesive.

This will obviously be quite a big breaking change, so this is open to discussion!

Bool does not conform to `KeyStringDecodable`

This causes issues (see vapor/fluent#359)

Process.execute on macOS leaves a background thread spinning at 100%

In particular, these lines are spinning uncontrollably after the child process exited.

Xcode's memory debugger revealed that the file handle and related objects are kept in memory by the autorelease pool – and explicitly wrapping the Process.execute call with @autoreleasepool resolved the issue.

Process.asyncExecute doesn't seem to have this issue, and I have not tested anything on Linux.

[Feature] Change Decodable.decodeProperty(forKey:) Parameter Type to AnyKeyPath

Allows greater flexibility, but you get the same result. Not sure what the effect on performance you get.

public static func decodeProperty(forKey keyPath: AnyKeyPath) throws -> ReflectedProperty? {
    let T = type(of: keyPath).valueType
        
    guard T.self is AnyReflectionDecodable.Type else {
        throw CoreError(identifier: "ReflectionDecodable", reason: "`\(T.self)` does not conform to `ReflectionDecodable`.")
    }

    if let cached = ReflectedPropertyCache.storage[keyPath] {
        return cached
    }

    var maxDepth = 0
    a: while true {
        defer { maxDepth += 1 }
        var activeOffset = 0

        if maxDepth > 42 {
            return nil
        }

        b: while true {
            defer { activeOffset += 1 }
            let context = ReflectionDecoderContext(activeOffset: activeOffset, maxDepth: maxDepth)
            let decoder = ReflectionDecoder(codingPath: [], context: context)

            let decoded = try Self(from: decoder)
            guard let codingPath = context.activeCodingPath else {
                // no more values are being set at this depth
                break b
            }

            guard let t = T.self as? AnyReflectionDecodable.Type else {
                break b
            }

            if try t.anyReflectDecodedIsLeft(decoded[keyPath: keyPath] as Any) {
                let property = ReflectedProperty(any: T.self, at: codingPath.map { $0.stringValue })
                ReflectedPropertyCache.storage[keyPath] = property
                return property
            }
        }
    }
}

process execute missing program

The error message should be better here.

Replace `Future.flatMap` with `Future.then`?

Currently, Future.flatMap is implemented like this:

core/Sources/Async/Future+Map.swift

Line 45 in fda3ebd

    
           public func flatMap<T>(to type: T.Type = T.self, _ callback: @escaping (Expectation) throws -> Future<T>) -> Future<T> {

Would it be possible to call through to SwiftNIO's implementation of Future.then instead?

https://github.com/apple/swift-nio/blob/6f3671de4ed1350b86762e0da317075f69983f7d/Sources/NIO/EventLoopFuture.swift#L437

Let me know if I'm missing something.

core doesn't compile on tvOS and WatchOS

Process+Execute.swift and Thread+Async.swift don't compile on these platforms

NSError conformance to Debuggable breaks type casting

The latest 3.6.0 release breaks type casting, xcode mentions that a forced cast from Error to Debuggable always succeeds. I use this quite a bit in my unit tests, but i also noticed that the Logger also notices this, saying that the case is already handled, but i don't think it actually is.

Happening on line 29

public func report(error e: Error,...
switch e {
    ...
    default:
        let reason: String
        switch e {
            case let localized as LocalizedError: reason = localized.localizedDescription
            // Case is already handled by previous patterns; consider removing it
            case let convertible as CustomStringConvertible: reason = convertible.description
            default: reason = "\(e)"
        }

Looks like conforming NSError to Debuggable causes incorrect type casting. A quick test;

enum DebuggableTest: Debuggable {
    case foo

    var identifier: String {
        switch self {
        case .foo: return "foo"
        }
    }

    var reason: String {
        switch self {
        case .foo: return "FooBar"
        }
    }

    static func test() throws {
        throw DebuggableTest.foo
    }
}

func testDebuggableTest() throws {
    // Works fine, no type casting happening
    XCTAssertEqual(DebuggableTest.foo.identifier, "foo")
    
    XCTAssertThrowsError(try DebuggableTest.test(), "test") { err in
        // err is Error
        // Notices that a force downcast from `Error` to `Debuggable` always succeeds, so Error probably conforms to NSError?
        // Test fails, because the identifier is "0", should be "foo"
        XCTAssertEqual(DebuggableTest.foo.identifier, (err as! Debuggable).identifier)
    }

    let downcast: Error = DebuggableTest.foo
    let upcast = downcast as Debuggable

    // Prints "0" as per NSError extension, instead of "foo"
    // All of this works fine without the NSError extension
    print(upcast.identifier)
}

Is there somewhere where Error actually conforms to NSError? Since Xcode/Swift notices that the downcast always succeeds.

It doesn't actually creates a DebuggableTest but just uses the identifier getter from the NSError extension.

Is there another way to cast i should use?

Is `Future.map(on: worker)` intentionally synchronous?

When working with Vapor, I recently was surprised to learn that Future.map was a synchronous method that returns a future. I had been under the mistaken impression that it executed the closure on the event loop.

Compare: https://github.com/vapor/core/blob/master/Sources/Async/Future%2BGlobal.swift#L11-L21

with .submit: https://github.com/apple/swift-nio/blob/ae13d135f79e7b60281f9bf4c1cf1b3341a7339f/Sources/NIO/EventLoop.swift#L268-L280

Just checking that this wasn't an oversight, because the two methods appear to be very close in implementation.

Assertion failed after completion of migration

Application crashed with NIO-ELT-#0 (2): Assertion failed in following place after completion of migration.

https://github.com/vapor/core/tree/3.0.1/Sources/Async/QueueHandler.swift#L95

My code just changed the database in api-template to MySQL.

I do not know which package's problem, so I submitted it as a Core's issue.

My environment is as follows.

OS

macOS High Sierra 10.13.2

MySQL Server

mysql  Ver 14.14 Distrib 5.7.18, for osx10.12 (x86_64) using  EditLine wrapper

Package.resolved

{
  "object": {
    "pins": [
      {
        "package": "Console",
        "repositoryURL": "https://github.com/vapor/console.git",
        "state": {
          "branch": null,
          "revision": "273cf2ed1f4daba88a452494c342020171d8c7b8",
          "version": "3.0.0-rc.2.2"
        }
      },
      {
        "package": "Core",
        "repositoryURL": "https://github.com/vapor/core.git",
        "state": {
          "branch": null,
          "revision": "225aff2b69049f2a4d9a4aae71d27ba7fb083032",
          "version": "3.0.1"
        }
      },
      {
        "package": "Crypto",
        "repositoryURL": "https://github.com/vapor/crypto.git",
        "state": {
          "branch": null,
          "revision": "e77aa181580b466fb26865918b62973d9fbfaed6",
          "version": "3.0.0"
        }
      },
      {
        "package": "DatabaseKit",
        "repositoryURL": "https://github.com/vapor/database-kit.git",
        "state": {
          "branch": null,
          "revision": "e594e658cc001e04b8d4ad13881d8714c510f94f",
          "version": "1.0.0-rc.2.2.2"
        }
      },
      {
        "package": "Engine",
        "repositoryURL": "https://github.com/vapor/engine.git",
        "state": {
          "branch": null,
          "revision": "4846ea9abeb04863f82f618ee8cb22650a82ae3c",
          "version": "3.0.0-rc.2.1.1"
        }
      },
      {
        "package": "Fluent",
        "repositoryURL": "https://github.com/vapor/fluent.git",
        "state": {
          "branch": null,
          "revision": "eb63485dfd6fbd0773a25e1b94830fbcedaa8266",
          "version": "3.0.0-rc.2.3.1"
        }
      },
      {
        "package": "FluentMySQL",
        "repositoryURL": "https://github.com/vapor/fluent-mysql.git",
        "state": {
          "branch": null,
          "revision": "7cf4f25b5b8fd22b373944750c6c50b6ddbc8024",
          "version": "3.0.0-rc.2.3"
        }
      },
      {
        "package": "MySQL",
        "repositoryURL": "https://github.com/vapor/mysql.git",
        "state": {
          "branch": null,
          "revision": "198576a6963973a691baaafdb1a01a078affe65c",
          "version": "3.0.0-rc.2.1.2"
        }
      },
      {
        "package": "Routing",
        "repositoryURL": "https://github.com/vapor/routing.git",
        "state": {
          "branch": null,
          "revision": "2fc1d4de22a54848b35ad17b3e7f7816f19ebf90",
          "version": "3.0.0-rc.2"
        }
      },
      {
        "package": "Service",
        "repositoryURL": "https://github.com/vapor/service.git",
        "state": {
          "branch": null,
          "revision": "281a70b69783891900be31a9e70051b6fe19e146",
          "version": "1.0.0"
        }
      },
      {
        "package": "swift-nio",
        "repositoryURL": "https://github.com/apple/swift-nio.git",
        "state": {
          "branch": null,
          "revision": "a0b7f646fba61402da384b3202f54c27debb5e13",
          "version": "1.3.1"
        }
      },
      {
        "package": "swift-nio-ssl",
        "repositoryURL": "https://github.com/apple/swift-nio-ssl.git",
        "state": {
          "branch": null,
          "revision": "ea006b6368dbd9dbfd297deb6ddb3f070b72d043",
          "version": "1.0.1"
        }
      },
      {
        "package": "swift-nio-ssl-support",
        "repositoryURL": "https://github.com/apple/swift-nio-ssl-support.git",
        "state": {
          "branch": null,
          "revision": "c02eec4e0e6d351cd092938cf44195a8e669f555",
          "version": "1.0.0"
        }
      },
      {
        "package": "swift-nio-zlib-support",
        "repositoryURL": "https://github.com/apple/swift-nio-zlib-support.git",
        "state": {
          "branch": null,
          "revision": "37760e9a52030bb9011972c5213c3350fa9d41fd",
          "version": "1.0.0"
        }
      },
      {
        "package": "TemplateKit",
        "repositoryURL": "https://github.com/vapor/template-kit.git",
        "state": {
          "branch": null,
          "revision": "61ed3d3b0df4c181d6b88e06b418f425978ac2af",
          "version": "1.0.0-rc.2.0.3"
        }
      },
      {
        "package": "Validation",
        "repositoryURL": "https://github.com/vapor/validation.git",
        "state": {
          "branch": null,
          "revision": "1ce87fc2d18a8f15a491805825063c8db493a51e",
          "version": "2.0.0-rc.2.1.1"
        }
      },
      {
        "package": "Vapor",
        "repositoryURL": "https://github.com/vapor/vapor.git",
        "state": {
          "branch": null,
          "revision": "63d758beb98efc08e8db960372c64ae3704c7616",
          "version": "3.0.0-rc.2.2.3"
        }
      }
    ]
  },
  "version": 1
}

URL does not conform to `KeyStringDecodable`

I am trying to create a Vapor app with a model that includes properties of type [URL]. I am running into an issue when trying to migrate with Fluent where it crashes with a fatal error.

Fatal error: URL does not conform to KeyStringDecodable.

I'm not exactly sure why this is failing. It would be nice to be able to use URL on my models.

small items caught when reviewing code

Byte+Control.swift line 93 :
public static let tilda: Byte = 0x7E
should be spelled tilde not tilda
your call whether an @available renamed is needed with fix.

Also line 108:
public static let pipe: UInt8 = 0x7C should be
public static let pipe: Byte = 0x7C

the version in cocoapods is still 2.0.0

I found the current version is 2.2.0,but the version in cocoapods is still 2.0.0.

An array of a custom type struct does not conform to KeyStringDecodable

This model

struct Pet: PostgreSQLJSONType, Codable {
    var name: String
    var type: String
}

struct Person: PostgreSQLModel, Migration{
    var id: Int?
    var title: String
    var pets: [Pet]
}

causes this fatal error:

Pet does not conform to KeyStringDecodable

Bits Target does not Import Debugging

The Bits target has a BitsError.swift file which imports Debugging, but the target does not have the Debugging target as a dependency, causing a compiler error.

hex strings

Add the ability to init Bytes from a hex string and also to convert bytes to hex strings.

public protocol SequenceInitializable: Sequence {
    init(_ sequence: [Iterator.Element])
}

/**
    Provides access to hexStrings

    Move to vapor/core
*/
extension SequenceInitializable where Iterator.Element == Byte {

    public init(hexString: String) {
        var data = Bytes()

        var gen = hexString.characters.makeIterator()
        while let c1 = gen.next(), let c2 = gen.next() {
            let s = String([c1, c2])

            guard let d = Byte(s, radix: 16) else {
                break
            }

            data.append(d)
        }

        self.init(data)
    }
}

extension Sequence where Iterator.Element == Byte {
    public var hexString: String {
        #if os(Linux)
            return self.lazy.reduce("") { $0 + (NSString(format:"%02x", $1).description) }
        #else
            let s = self.lazy.reduce("") { $0 + String(format:"%02x", $1) }

            return s
        #endif
    }
}

Does Core support Cocoapods?

Hello, 👋 I was just thinking if Core is supported by Cocoapods? Atm, I have the 2.0.1 version installed and I have some issues since this version isn't updated to Swift 4.0.1. As I checked in the PR's the PR regarding the newest version of Swift is already merged but the pod's version isn't updated just yet. 🤔

Date of RFC1123 can't fit to real date format

For this class: core/Sources/Core/RFC1123.swift
https://github.com/vapor/core/blob/5f4049900be7eacf4de43aa1240f4eb101c2edb6/Sources/Core/RFC1123.swift

The date format is "EEE',' dd MMM yyyy HH':'mm':'ss 'GMT'".

But in fact, the real date string may be: "Thu, 01-Jan-1970 00:00:01 GMT". For this case, the expires date will be nil.

So, it's better to fit to more corresponding date format.

file protocol

Add a file protocol like

public protocol FileProtocol {
    func load(path: String) throws -> Bytes
    func save(bytes: Bytes, to path: String) throws
}

Build error with swift snapshot 2016-12-07-a

swift snapshot 2016-12-07-a on Ubuntu 16.04

daniel@ubuntu:~$ cd core/
daniel@ubuntu:~/core$ swift build
Compile Swift Module 'libc' (1 sources)
Compile Swift Module 'Core' (28 sources)
0  swift           0x00000000034be138
1  swift           0x00000000034be876
2  libpthread.so.0 0x00007f2a92a163e0
3  swift           0x0000000000e0a42c
4  swift           0x0000000000e0a9cf
5  swift           0x000000000064f1bd
6  swift           0x0000000000651fb6
7  swift           0x000000000061a7aa
8  swift           0x0000000000612924
9  swift           0x00000000006b7522
10 swift           0x00000000006b70fd
11 swift           0x000000000061758b
12 swift           0x000000000061847b
13 swift           0x0000000000618ad5
14 swift           0x0000000000480870
15 swift           0x000000000047c28c
16 swift           0x000000000043aca7
17 libc.so.6       0x00007f2a9112f830 __libc_start_main + 240
18 swift           0x00000000004380e9
Stack dump:
0.	Program arguments: /home/daniel/apple/usr/bin/swift -frontend -c /home/daniel/core/Sources/Core/Dispatch.swift /home/daniel/core/Sources/Core/Result.swift /home/daniel/core/Sources/Core/Semaphore.swift /home/daniel/core/Sources/Core/RFC1123.swift /home/daniel/core/Sources/Core/Bool+String.swift /home/daniel/core/Sources/Core/Sequence.swift /home/daniel/core/Sources/Core/Extractable.swift /home/daniel/core/Sources/Core/Portal.swift /home/daniel/core/Sources/Core/String+CaseInsensitiveCompare.swift /home/daniel/core/Sources/Core/Strand.swift /home/daniel/core/Sources/Core/Equatable.swift /home/daniel/core/Sources/Core/DispatchTime+Utilities.swift -primary-file /home/daniel/core/Sources/Core/StaticDataBuffer.swift /home/daniel/core/Sources/Core/String.swift /home/daniel/core/Sources/Core/Lock.swift /home/daniel/core/Sources/Core/Box.swift /home/daniel/core/Sources/Core/UnsignedInteger.swift /home/daniel/core/Sources/Core/Collection+Safe.swift /home/daniel/core/Sources/Core/FileProtocol.swift /home/daniel/core/Sources/Core/Array.swift /home/daniel/core/Sources/Core/PercentEncoding.swift /home/daniel/core/Sources/Core/Byte/Bytes.swift /home/daniel/core/Sources/Core/Byte/Byte.swift /home/daniel/core/Sources/Core/Byte/ByteAliases.swift /home/daniel/core/Sources/Core/Byte/BytesSlice+PatternMatching.swift /home/daniel/core/Sources/Core/Byte/Byte+Random.swift /home/daniel/core/Sources/Core/Byte/Bytes+Base64.swift /home/daniel/core/Sources/Core/Byte/BytesConvertible.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -I /home/daniel/core/.build/debug -enable-testing -g -module-cache-path /home/daniel/core/.build/debug/ModuleCache -D SWIFT_PACKAGE -emit-module-doc-path /home/daniel/core/.build/debug/Core.build/StaticDataBuffer~partial.swiftdoc -Onone -parse-as-library -module-name Core -emit-module-path /home/daniel/core/.build/debug/Core.build/StaticDataBuffer~partial.swiftmodule -emit-dependencies-path /home/daniel/core/.build/debug/Core.build/StaticDataBuffer.d -emit-reference-dependencies-path /home/daniel/core/.build/debug/Core.build/StaticDataBuffer.swiftdeps -num-threads 8 -o /home/daniel/core/.build/debug/Core.build/StaticDataBuffer.swift.o 
1.	While silgen constructor initializer SIL function @_TFC4Core16StaticDataBuffercuRxs8SequenceWx8Iterator7Element_zVs5UInt8rfT5bytesx_S0_ for 'init' at /home/daniel/core/Sources/Core/StaticDataBuffer.swift:12:12
<unknown>:0: error: unable to execute command: Segmentation fault
<unknown>:0: error: compile command failed due to signal (use -v to see invocation)
<unknown>:0: error: build had 1 command failures
error: exit(1): /home/daniel/apple/usr/bin/swift-build-tool -f /home/daniel/core/.build/debug.yaml

Replace `Collection<Future>.flatten` with `Future.reduce`?

At the moment we are implementing `flatten ourself in

core/Sources/Async/Future+Flatten.swift

Line 42 in 3b72f2c

public func flatten(on worker: Worker) -> Future<[Element.Expectation]> {

We could investigate whether we could replace that with an almost-trivial call to https://github.com/apple/swift-nio/blob/82a6e4d8215660005127547106aa8cf10817cb78/Sources/NIO/EventLoopFuture.swift#L915.

Include FileManager

This should be in core, also needs a cleanup.

Peek.swift

Vapor Core needs a Peek extension while @tanner0101's PR on Nio is proccessed

UUID.properties() crashes because "0" is not a valid UUID

This code crashes in the beta branch:

import CodableKit
import Foundation

_ = UUID.properties()

Producing the following error:

Thread 1: Fatal error: 'try!' expression unexpectedly raised an error: Swift.DecodingError.dataCorrupted(Swift.DecodingError.Context(codingPath: [], debugDescription: "Attempted to decode UUID from invalid UUID string.", underlyingError: nil))

This also happens whenever Decodable.properties() is called on a type that has a UUID field.

This happens because CodingKeyCollector works by pretending to decode a type. When it encounters a String, it tries to decode "0":

    func decode(_ type: String.Type) throws -> String {
        result.add(type: type, atPath: codingPath)
        return "0"
    }

I was able to temporarily fix the crasher by changing that function in CodingKeyCollectorSingleValueDecoder to:

    func decode(_ type: String.Type) throws -> String {
        result.add(type: type, atPath: codingPath)
        return "00000000-0000-0000-0000-000000000000"
    }

A slightly more robust solution is to add a decode(_ type: UUID.Type) -> UUID that handles that special case.

Still, this only fixes this one case and doesn't address the class of potential errors that arise from assuming that any Decodable can be successfully decoded with an arbitrary combination of values (false, "0", 0).

[REGRESSION] Reflection outputs duplicate properties, causes MySQL Migration Failures

Let's say you have a model like so:

final class Account: MySQLModel, Migration, Content, Parameter {
    var id: Int?
    var authId: UUID
    
    var status: Status = .provisioned
    enum Status: Int, Codable, MySQLDataConvertible, MySQLColumnDefinitionStaticRepresentable {
        public static var mySQLColumnDefinition = MySQLColumnDefinition.tinyInt()
        
        case provisioned = 0
        case activated = 1
        case verified = 2
    }
}

The auto-generated migration fails with MySQL.MySQLErrorPacket(errorCode: 1060, sqlStateMarker: Optional("#"), sqlState: Optional("42S21"), errorMessage: "Duplicate column name \'status\'"))

Digging into it, it's because Reflection is outputting duplicate properties for the Status field. Printing the list of generated properties yields:

[
  id: Optional<Int>, 
  authId: UUID, 
  status: Status, 
  status: Int
]

Reflection very slow and using a lot of memory

I have a table with over 100 columns. Using migrations addProperties(to: builder) has no issues, but when specifying each column using builder.field(for: \.myColumn), then bad things happen.

Memory usage climbs to over 100mb and the execution is frozen for ~1 minute. From profiling, I believe CodableReflection is the cause of this, specifically this function:
public static func anyDecodeProperty(valueType: Any.Type, keyPath: AnyKeyPath) throws -> ReflectedProperty?

Data does not conform to ReflectionDecodable

Steps

Create a new Vapor 3 project w/PostgreSQLFluent
Create a PostgreSQLModel subclass with a Data property
Add model to migration config in configure.swift
Run application

Expected Result
Migration for your new model runs and creates a bytea PostgeSQL column

Actual Result
Error is thrown: ⚠️ [CoreError.ReflectionDecodable: Datadoes not conform toReflectionDecodable.]

Infinite loop crash if Fluents `ID` is set to UInt64 (Vapor 3)

Using MySQL fluent ... loops on:

    func decode<T>(_ type: T.Type) throws -> T where T : Decodable {
        let decoder = KeyStringDecoder(codingPath: codingPath, result: result)
        return try T(from: decoder)
    }

add extendable

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