"Failed to run tests" but no helpful information given about xctool HOT 5 CLOSED

$ xctool -workspace MyApp.xcworkspace -scheme MyApp ONLY_ACTIVE_ARCH=NO test
[Info] Collecting build settings ... (1282 ms)

=== TEST ===

  xcodebuild build build
    Pods / Pods (Debug)
      ✓ Check dependencies (323 ms)

    Pods / Pods-KiwiUnitTest (Debug)
      ✓ Check dependencies (157 ms)

    MyApp / MyApp (Debug)
      ✓ Check dependencies (303 ms)
      ✓ Run custom shell script 'Copy Pods Resources' (67 ms)
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rsync -av --exclude '*/.svn/*' /Users/thatguy/Code/MyApp/Pods/ZAActivityBar/ZAActivityBar/ZAActivityBar.bundle /Users/thatguy/Library/Developer/Xcode/DerivedData/MyApp-fvyajjdocblkjhfmmzrsrkgbrqgh/Build/Products/Debug-iphonesimulator/MyApp.app
building file list ... done

sent 157 bytes  received 20 bytes  354.00 bytes/sec
total size is 7055  speedup is 39.86
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    MyApp / KiwiUnitTest (Debug)
      ✓ Check dependencies (10 ms)
      ✓ Run custom shell script 'Run Script' (19 ms)
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/Applications/Xcode.app/Contents/Developer/Tools/RunUnitTests:68: note: RunUnitTests exited without running tests because TEST_AFTER_BUILD was set to NO.
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      ✓ Run custom shell script 'Copy Pods Resources' (17 ms)


  run-test KiwiUnitTest.octest (iphonesimulator6.1, application-test, GC OFF)
    [Info] Installing '/Users/thatguy/Library/Developer/Xcode/DerivedData/MyApp-fvyajjdocblkjhfmmzrsrkgbrqgh/Build/Products/Debug    [Info] Installing '/Users/thatguy/Library/Developer/Xcode/DerivedData/MyApp-fvyajjdocblkjhfmmzrsrkgbrqgh/Build/Products/Debug-iphonesimulator/MyApp.app' ... (1215 ms)
    [Info] Launching test host and running tests ...
  failed: Failed to run tests
** TEST FAILED: 0 of 0 tests passed ** (5307 ms)

 run-test KiwiUnitTest.octest (iphonesimulator6.1, application-test, GC OFF)
    [Info] Installing '/Users/thatguy/Library/Developer/Xcode/DerivedData/MyApp-fvyajjdocblkjhfmmzrsrkgbrqgh/Build/Products/Debug    [Info] Installing '/Users/thatguy/Library/Developer/Xcode/DerivedData/MyApp-fvyajjdocblkjhfmmzrsrkgbrqgh/Build/Products/Debug-iphonesimulator/MyApp.app' ... (1215 ms)
    [Info] Launching test host and running tests ...
    [Error] Test host has crashed