Thousands of /tmp/rustdoctest* directories

[m-ou-se]

While working on rustc, I often have:

$ ls /tmp/rustdoctest* | wc -l
6197

😬

Almost all these directories are completely empty.

We should probably do a better job at cleaning them up. Or move them into the build directory instead of littering all over /tmp.

[GuillaumeGomez]

How do you run doctests and under which edition? Asking because we recently changed how we were running doctests so like that I know where to look at.

[m-ou-se]

@GuillaumeGomez I just run ./x.py test in the rust-lang/rust repo.

[GuillaumeGomez]

Ah. So I guess I'll check if rustc is using the old or new doctests soon enough. :)

[GuillaumeGomez]

Problem is that if doctests fail, exit is called and temporary folder is not cleaned up. No clue how I will add a regression test for that but at least the fix is done.

[GuillaumeGomez]

Fix opened in #140706.

[lolbinarycat]

No clue how I will add a regression test for that but at least the fix is done.

run_make test with TMPDIR set to a local dir, probably?