Buildbot failure in Python on AMD64 FreeBSD 10.x Shared 3.x

The Buildbot has detected a failed build on builder AMD64 FreeBSD 10.x Shared 3.x while building python/cpython. Full details are available at: http://buildbot.python.org/all/#builders/87/builds/240
Buildbot URL: http://buildbot.python.org/all/
Worker for this Build: koobs-freebsd10
Build Reason: <unknown> Blamelist: Benjamin Peterson benjamin@python.org
BUILD FAILED: failed test (failure)
Sincerely, -The Buildbot

I didn't open an issue for:
test_shutdown_race_issue12456 (test.test_concurrent_futures.ProcessPoolForkProcessPoolExecutorTest) ... 0.26s Warning -- reap_children() reaped child process 28284 ok
1 test altered the execution environment: test_concurrent_futures
2017-11-25 22:13 GMT+01:00 buildbot@python.org:
The Buildbot has detected a failed build on builder AMD64 FreeBSD 10.x Shared 3.x while building python/cpython. Full details are available at: http://buildbot.python.org/all/#builders/87/builds/240
Buildbot URL: http://buildbot.python.org/all/
Worker for this Build: koobs-freebsd10
Build Reason: <unknown> Blamelist: Benjamin Peterson benjamin@python.org
BUILD FAILED: failed test (failure)
Sincerely, -The Buildbot _______________________________________________ Buildbot-status mailing list buildbot-status@python.org https://mail.python.org/mm3/mailman3/lists/buildbot-status.python.org/
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buildbot@python.org
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Victor Stinner