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GitHub Actions: test_logging CI fails randomly #151463
Description
Bug report
Bug description:
test_logging CI randomly fails with a test_rollover_at_midnight AssertionError.
I can reproduce the failure locally on Windows—and less frequently on WSL2 Ubuntu 22.04—using:
./python -m test test_logging -m "test_rollover_at_weekday" -F
The output:
test test_logging failed -- Traceback (most recent call last):
File "C:\coding\cpython\Lib\test\test_logging.py", line 6750, in test_rollover_at_weekday
self.test_rollover_at_midnight(weekly=True)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^
File "C:\coding\cpython\Lib\test\test_logging.py", line 6744, in test_rollover_at_midnight
self.assertIn(f'testing2 {i}', line)
~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: 'testing2 0' not found in '2026-06-14 13:45:50,101 testing1 0\n'See https://github.com/python/cpython/actions/runs/27469272829/job/81197168217 and https://github.com/python/cpython/actions/runs/27463542896/job/81181712774
CPython versions tested on:
CPython main branch
Operating systems tested on:
Linux, Windows
Activity
[-]GitHub Action: `test_logging` CI fails randomly[/-][+]GitHub Actions: `test_logging` CI fails randomly[/+]vstinner commentedon Jun 15, 2026
This is a duplicate of issue gh-84649.