miri no longer builds after rust-lang/rust#81761

[rust-highfive]

Hello, this is your friendly neighborhood mergebot.
After merging PR #81761, I observed that the tool miri has failing tests.
A follow-up PR to the repository https://github.com/rust-lang/miri is needed to fix the fallout.

cc @m-ou-se, do you think you would have time to do the follow-up work?
If so, that would be great!

[osa1]

Where can I learn more about how this check is done? I just built stage 1 compiler with current master, and I was able to build miri with cargo +stage1 build.

[m-ou-se]

I'm guessing one of the tests is failing because it now needs a #[allow(non_fmt_panic)]. The failure should be hidden somewhere in the logs of the toolstate runner: https://github.com/rust-lang-ci/rust/runs/1834930125

[m-ou-se]

rust-lang/miri#1701 should fix tihs.

[osa1]

Ah, so the problem is in one of the tests.. I only checked building.

[RalfJung]

@osa1 usually, x.py test --stage 0 src/tools/miri should let you run the tests, but this is currently broken by #78778.