Disable frozen_flag_preserves_old_lockfile test

[nrc]

r? @alexcrichton cc @matklad

[Mark-Simulacrum]

Before we do this, I'd want some confirmation that we haven't actually somehow regressed behavior here. This test is critical to Rust today: we cannot run crater due to lockfile differences if it fails.

In general, this (IMO) is P-high to re-enable if we do disable it IMO.

[nrc]

Before we do this, I'd want some confirmation that we haven't actually somehow regressed behavior here

Whether we've regressed behaviour or not, this test is still buggy and having the buggy test present isn't preventing any behaviour regressing, it's just blocking other code landing (which would fix an important regression).

[Mark-Simulacrum]

Yeah, that's true. I think we can actually mark the test as #[ignore] instead of commenting it out. Unfortunately, this can't land until rust-lang/rust#46271 is fixed AFAICT.

I guess I'm okay with landing even without confirming, but I'd prefer that we confirmed. Either way, I guess, it's a high priority thing to fix this test.

[alexcrichton]

I've found the failure, will submit a fix shortly.

[alexcrichton]

Ok I've opened up #4762 with what I believe is the fix. I'm gonna close this for now but if that doesn't fix it we can reopen an temporarily disable!