https://autobuilder.yoctoproject.org/typhoon/#/builders/82/builds/6535/steps/13/logs/stdio AssertionError: Failed ptests: {'python3': ['test_forkserver_sigkill', 'python3']} qemuarm64-ptest ubuntu1804-arm-1
Looks like a timeout problem: the test sleeps for 0.5s before triggering an event in one process and then waits 1s for the event in another process. The timeout is a little tight so I'm curious if this happens again: if it does then increasing the delay multiplier in Lib/test/_test_multiprocessing.py:check_forkserver_death() should do the trick.
Has not happened in 6 months.