test_all fails reproducibly on pasta (please report this procfs bug)

[NoisyCoil]

The test_all test fails reproducibly when running alongside pasta, asking the user to report the procfs bug:

---- process::tests::test_all stdout ----
1 systemd
[...]
382759 pasta
thread 'process::tests::test_all' panicked at procfs/src/process/tests.rs:18:21:
check_unwrap error for 382759 InternalError(bug at procfs-core/src/process/mount.rs:181 (please report this procfs bug)
Internal Unwrap Error: NoneError)

failures:
    process::tests::test_all

To reproduce, e.g. in Debian (testing), install pasta (apt install passt), execute pasta and leave the session open, then in a separate terminal run cargo test on current main.

I discovered this while running podman, which executes pasta.