Comment 1 for bug 1933311

The shipped below is what causes the perverse delays. It is true that there are some symlinks inside the repository but there is no real reason for this to take minutes to run. A simple run of `ncdu` reported 1.0GB among 91000 items, most of them inside .tox folder.
```python
from distutils.filelist import findall
findall(".")
```

I think that use of findall without any filters is inappropriate here as it does return a huge amount of noise from temp files (.tox, .pytest_cache, mypy)