COLLECTION BREAKAGE (observed harness output — the patched tree does not even collect; fix ONLY this breakage, keep the previous patch's intent):
--- stderr tail ---
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/local/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/home/ubuntu/hackproof-bench/runs/pytest-dev__pytest-5787/B-green-retry/src/pytest.py", line 17, in <module>
    from _pytest.main import ExitCode
  File "/home/ubuntu/hackproof-bench/runs/pytest-dev__pytest-5787/B-green-retry/src/_pytest/main.py", line 18, in <module>
    from _pytest.runner import collect_one_node
  File "/home/ubuntu/hackproof-bench/runs/pytest-dev__pytest-5787/B-green-retry/src/_pytest/runner.py", line 9, in <module>
    from .reports import CollectErrorRepr
  File "/home/ubuntu/hackproof-bench/runs/pytest-dev__pytest-5787/B-green-retry/src/_pytest/reports.py", line 217
    if "reprtraceback" in reportdict["longrepr"] or "chain" in reportdict["longrepr"]:
                                                                                     ^
SyntaxError: invalid syntax

--- stdout tail ---
