CI Intermittent segmentation fault in Windows arm64 wheels test (vanilla CPython)

It's been seen so far (October 13) in 2 runs over 13 runs (see [scheduled Wheels runs](https://github.com/scikit-learn/scikit-learn/actions/workflows/wheels.yml?query=event%3Aschedule)):
- Python 3.12 [build log](https://github.com/scikit-learn/scikit-learn/actions/runs/18239153780/job/51938405934)
- Python 3.14 see [build log](https://github.com/scikit-learn/scikit-learn/actions/runs/18423960080/job/52502560141) from https://github.com/scikit-learn/scikit-learn/issues/32393#issuecomment-3396312539

The information is similar in both cases seems to point the finger at
```
sklearn\tree\tests\test_monotonic_tree.py", line 511 in test_nd_tree_nodes_values
```

Relevant part of the build log:
```
  tests\test_random_projection.py ........................................ [ 88%]
  ........................................................................ [ 88%]
  ........................................................................ [ 88%]
  .......................................................                  [ 88%]
  tree\tests\test_export.py ..........sssss                                [ 88%]
  tree\tests\test_monotonic_tree.py ...................................... [ 88%]
  ........................................................................ [ 89%]
  Windows fatal exception: access violation
  
  Thread 0x0000187c (most recent call first):
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\threading.py", line 369 in wait
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\joblib\externals\loky\backend\queues.py", line 147 in _feed
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\threading.py", line 1023 in run
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\threading.py", line 1081 in _bootstrap_inner
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\threading.py", line 1043 in _bootstrap
  
  Thread 0x0000067c (most recent call first):
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\multiprocessing\connection.py", line 1045 in _exhaustive_wait
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\multiprocessing\connection.py", line 1113 in wait
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\joblib\externals\loky\process_executor.py", line 681 in wait_result_broken_or_wakeup
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\joblib\externals\loky\process_executor.py", line 623 in run
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\threading.py", line 1081 in _bootstrap_inner
    File "C:\Users\runneradmin\AppData\Local\pypa\cibuildwheel\Cache\nuget-cpython\pythonarm64.3.14.0-rc3\tools\Lib\threading.py", line 1043 in _bootstrap
  
  Current thread 0x00000730 (most recent call first):
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\sklearn\tree\_classes.py", line 475 in _fit
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\sklearn\tree\_classes.py", line 1407 in fit
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\sklearn\base.py", line 1336 in wrapper
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\sklearn\tree\tests\test_monotonic_tree.py", line 511 in test_nd_tree_nodes_values
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\python.py", line 157 in pytest_pyfunc_call
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_callers.py", line 121 in _multicall
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_manager.py", line 120 in _hookexec
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_hooks.py", line 512 in __call__
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\python.py", line 1671 in runtest
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\runner.py", line 178 in pytest_runtest_call
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_callers.py", line 121 in _multicall
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_manager.py", line 120 in _hookexec
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_hooks.py", line 512 in __call__
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\runner.py", line 246 in <lambda>
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\runner.py", line 344 in from_call
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\runner.py", line 245 in call_and_report
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\runner.py", line 136 in runtestprotocol
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\runner.py", line 117 in pytest_runtest_protocol
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_callers.py", line 121 in _multicall
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_manager.py", line 120 in _hookexec
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_hooks.py", line 512 in __call__
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\main.py", line 367 in pytest_runtestloop
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_callers.py", line 121 in _multicall
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_manager.py", line 120 in _hookexec
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_hooks.py", line 512 in __call__
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\main.py", line 343 in _main
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\main.py", line 289 in wrap_session
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\main.py", line 336 in pytest_cmdline_main
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_callers.py", line 121 in _multicall
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_manager.py", line 120 in _hookexec
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\pluggy\_hooks.py", line 512 in __call__
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\config\__init__.py", line 175 in main
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Lib\site-packages\_pytest\config\__init__.py", line 201 in console_main
    File "C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk\cp314-win_arm64\venv-test\Scripts\pytest.exe\__main__.py", line 6 in <module>
    File "<frozen runpy>", line 88 in _run_code
    File "<frozen runpy>", line 198 in _run_module_as_main
  
  Current thread's C stack trace (most recent call first):
    <cannot get C stack on this system>
  C:\a\scikit-learn\scikit-learn/build_tools/github/test_windows_wheels.sh: line 38:   833 Segmentation fault      pytest --pyargs sklearn
  Warning: cibuildwheel: Can't delete temporary folder 'C:\Users\runneradmin\AppData\Local\Temp\cibw-run-mc25gkqk'
  
  Error: cibuildwheel: Command bash C:\a\scikit-learn\scikit-learn/build_tools/github/test_windows_wheels.sh 314 C:\a\scikit-learn\scikit-learn win_arm64 failed with code 139. 
  
  ............................::endgroup::Testing wheel...
``` 


cc @khmyznikov and @vask2108 who did the work of adding Windows arm64 wheels: https://github.com/scikit-learn/scikit-learn/pull/31867. Maybe you have seen similar things in other packages and/or you would be willing to help debug this?

COMMENT:
I would suggest a plan like this:
1. you get a simpler reproducer first (it's optional but would make iteration a lot less painful)
2. you use action-tmate to have an interactive session in the GHA runner (optional as well, if you know how to do 3. in a non-interactive way)
3. then you use a debugger to have the compiled code stack-trace (likely C) of the source of the segmentation error. On Linux I would use `gdb` or macOS `ldb` no idea what is the equivalent on Windows ...
4. once the source of the error is clearer, depending on where it is, you try hard to guess what could be causing it, or you report it upstream, or you find an arm or compiler expert and ask them if they have any idea

Labels: Build / CI, arch:arm, OS:Windows