Oh, interesting: test_regrtest.test_multiprocessing_timeout() failed with a timeout on x86 Windows7 3.x.

This build tested commit d33e46d17d33f9b918846982c02ddc17d897c9bc which is older than my "bpo-37531: Enhance regrtest multiprocess timeout (GH-15345)" change (older than commit de2d9eed8bc628533e1628b843cc4c7a5010f6e5).

https://buildbot.python.org/all/#/builders/58/builds/2889

running: test_regrtest (32 min 8 sec)
running: test_regrtest (32 min 38 sec)
running: test_regrtest (33 min 8 sec)
running: test_regrtest (33 min 38 sec)
running: test_regrtest (34 min 8 sec)
running: test_regrtest (34 min 38 sec)
1:19:18 load avg: 1.19 [419/419/1] test_regrtest crashed (Exit code 1)
Timeout (0:35:00)!
Thread 0x00000ddc (most recent call first):
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\subprocess.py", line 1353 in _readerthread
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\threading.py", line 876 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\threading.py", line 938 in _bootstrap_inner
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\threading.py", line 896 in _bootstrap

Thread 0x00000e68 (most recent call first):
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\threading.py", line 1033 in _wait_for_tstate_lock
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\threading.py", line 1017 in join
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\subprocess.py", line 1382 in _communicate
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\subprocess.py", line 1015 in communicate
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\subprocess.py", line 491 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_regrtest.py", line 504 in run_command
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_regrtest.py", line 529 in run_python
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_regrtest.py", line 680 in run_tests
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\test_regrtest.py", line 1178 in test_multiprocessing_timeout
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\case.py", line 611 in _callTestMethod
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\case.py", line 654 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\case.py", line 714 in __call__
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\suite.py", line 122 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\suite.py", line 84 in __call__
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\suite.py", line 122 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\suite.py", line 84 in __call__
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\suite.py", line 122 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\suite.py", line 84 in __call__
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\unittest\runner.py", line 176 in run
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\support\__init__.py", line 1996 in _run_suite
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\support\__init__.py", line 2092 in run_unittest
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\runtest.py", line 209 in _test_module
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\runtest.py", line 234 in _runtest_inner2
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\runtest.py", line 270 in _runtest_inner
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\runtest.py", line 140 in _runtest
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\runtest.py", line 193 in runtest
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\runtest_mp.py", line 66 in run_tests_worker
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\main.py", line 642 in _main
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\main.py", line 628 in main
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\libregrtest\main.py", line 695 in main
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\regrtest.py", line 43 in _main
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\test\regrtest.py", line 47 in <module>
  File "D:\cygwin\home\db3l\buildarea\3.x.bolen-windows7\build\lib\runpy.py", line 85 in _run_code

== Tests result: FAILURE ==