Test Failure and Warnings in http/bad_request under SELECT Event Mechanism on Raspberry Pi about libevent HOT 2 CLOSED

pi@raspberrypi:~/libevent/.cmake$ bin/regress http/bad_request
http/bad_request: [forking] OK
1 tests ok.  (0 skipped)

pi@raspberrypi:~/libevent/.cmake$ bin/regress
main/methods: [forking] OK
...
event_timer/precise_clock: [forking] OK
354 tests ok.  (35 skipped)

pi@raspberrypi:~/libevent/.cmake$ lscpu
Architecture:        armv6l
Byte Order:          Little Endian
CPU(s):              1
On-line CPU(s) list: 0
Thread(s) per core:  1
Core(s) per socket:  1
Socket(s):           1
Vendor ID:           ARM
Model:               7
Model name:          ARM1176
Stepping:            r0p7
BogoMIPS:            2157.77
Flags:               half thumb fastmult vfp edsp java tls

pi@raspberrypi:~/libevent/.cmake$ lsb_release -a
No LSB modules are available.
Distributor ID: Raspbian
Description:    Raspbian GNU/Linux 10 (buster)
Release:        10
Codename:       buster