Pytest test suite fails with Pytest 9.0.3

[ChaseKnowlden]

• a detailed description of the bug or problem you are having
• output of pip list from the virtual environment you are using
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The test suite for Pytest fails with Pytest 9.0.3.

Version: pytest 9.0.3
OS: Linux From Scratch version r13.0-64-systemd

Output:

_____ test_timeout[True] _______

pytester = <Pytester PosixPath('/tmp/pytest-of-chase/pytest-0/test_timeout0')>, enabled = True

    @pytest.mark.keep_ci_var
    @pytest.mark.parametrize(
        "enabled",
        [
            pytest.param(
                True,
                marks=pytest.mark.skipif(
                    bool(os.environ.get("CI"))
                    and sys.platform == "linux"
                    and sys.version_info >= (3, 14),
                    reason="sometimes crashes on CI because of truncated outputs (#7022)",
                ),
            ),
            False,
        ],
    )
    def test_timeout(pytester: Pytester, enabled: bool) -> None:
        """Test option to dump tracebacks after a certain timeout.

        If faulthandler is disabled, no traceback will be dumped.
        """
        pytester.makepyfile(
            """
        import os, time
        def test_timeout():
            time.sleep(1 if "CI" in os.environ else 0.1)
        """
        )
        pytester.makeini(
            """
            [pytest]
            faulthandler_timeout = 0.01
            """
        )
        args = ["-p", "no:faulthandler"] if not enabled else []

        result = pytester.runpytest_subprocess(*args)
        tb_output = "most recent call first"
        if enabled:
>           result.stderr.fnmatch_lines([f"*{tb_output}*"])
E           Failed: remains unmatched: '*most recent call first*'

/sources/BLFS/pytest-9.0.3/testing/test_faulthandler.py:114: Failed

Pip list:

Package                 Version
----------------------- ------------
argcomplete             3.6.3
asciidoc                10.2.1
attrs                   25.4.0
charset-normalizer      3.4.4
Cython                  3.2.4
docutils                0.22.4
editables               0.5
elementpath             5.1.1
flit_core               3.12.0
hatch-fancy-pypi-readme 25.1.0
hatch-vcs               0.5.0
hatchling               1.28.0
hypothesis              6.152.1
idna                    3.11
iniconfig               2.3.0
Jinja2                  3.1.6
lxml                    6.0.4
MarkupSafe              3.0.3
meson                   1.11.0
mock                    5.2.0
packaging               26.0
pathspec                1.0.4
pip                     26.0.1
pluggy                  1.6.0
pwquality               1.4.5
Pygments                2.20.0
pytest                  9.0.3
requests                2.33.1
setuptools              82.0.1
setuptools-scm          9.2.2
sortedcontainers        2.4.0
trove-classifiers       2026.1.14.14
urllib3                 2.6.3
wheel                   0.46.3
xmlschema               4.3.1