Dear Maintainer,

After updating rust-tempfile to 3.20.0-1, its autopkgtests sometimes fail on
some architectures. For instance, earlier today, 2 out of 3 runs failed on
armel. Failures may be race conditions, and they always seem to take place in
tests/namedtempfile.rs. Unfortunately I don't have access to porter machines
yet to work on this, so I'm filing this bug mainly as a reminder to myself.

Cheers!