The Buildbot has detected a new failure on builder AMD64 Windows11 Refleaks 3.13 while building python/cpython. Full details are available at: https://buildbot.python.org/#/builders/1484/builds/380

Buildbot URL: https://buildbot.python.org/

Worker for this Build: ware-win11

Build Reason: <unknown> Blamelist: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>, Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>, Victor Stinner <vstinner@python.org>

BUILD FAILED: failed test (failure)

Summary of the results of the build (if available):

==

Captured traceback

Traceback (most recent call last): File "b:\uildarea\3.13.ware-win11.refleak\build\Lib\test\test_io.py", line 4630, in test_daemon_threads_shutdown_stderr_deadlock self.check_daemon_threads_shutdown_deadlock('stderr') ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^ File "b:\uildarea\3.13.ware-win11.refleak\build\Lib\test\test_io.py", line 4618, in check_daemon_threads_shutdown_deadlock self.assertRegex(err, pattern) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^ AssertionError: Regex didn't match: "Fatal Python error: _enter_buffered_busy: could not acquire lock for <(_io\\.)?BufferedWriter name='<stderr>'> at interpreter shutdown, possibly due to daemon threads" not found in '........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................

Traceback (most recent call last): File "b:\uildarea\3.13.ware-win11.refleak\build\Lib\test\test_io.py", line 4630, in test_daemon_threads_shutdown_stderr_deadlock self.check_daemon_threads_shutdown_deadlock('stderr') ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^ File "b:\uildarea\3.13.ware-win11.refleak\build\Lib\test\test_io.py", line 4618, in check_daemon_threads_shutdown_deadlock self.assertRegex(err, pattern) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^

Test report

Failed tests:

• test_io

Failed subtests:

• test_daemon_threads_shutdown_stderr_deadlock - test.test_io.CMiscIOTest.test_daemon_threads_shutdown_stderr_deadlock

Sincerely, -The Buildbot