Enable distcheck for aarch64-apple-darwin

[sgasho]

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Add a minimal macOS distcheck CI job.

Linux already has an x86_64-gnu-distcheck, which runs x.py test distcheck.
This PR adds the same distcheck for aarch64-apple-darwin.

Background: #gsoc > Project: Bringing autodiff and offload into Rust CI @ 💬

[ZuseZ4]

@bors delegate=try

[rust-bors]

✌️ @sgasho, you can now perform try builds on this pull request!

You can now post @bors try to start a try build.

[sgasho]

@bors try jobs=aarch64-apple-distcheck

[ZuseZ4]

Ping @Kobzol to make sure it's the check you had in mind, and later approve, if it's fine from an infra perspective. Then we can test the dynamic LLVM PR with this check next.
If you think it's too expensive we can also just keep it while experimenting.

[jieyouxu]

Do note that aarch64-apple is one of the slowest jobs, I'm curious to see the job time w/ distcheck

[rust-bors]

☀️ Try build successful (CI)
Build commit: cdd5b6a (cdd5b6ab68977026e52934a7de39c9169a5dc09d, parent: a06c1ca53a775af31bcbdaeed995c2f224b34d06)

[jieyouxu]

Trying again to get another datapoint
@bors try jobs=aarch64-apple-distcheck

[rust-bors]

☀️ Try build successful (CI)
Build commit: 0d622e9 (0d622e95b3947713c1b8b8ae5969c9799c33c7d1, parent: 1d59f669f9c699b982f112ebbc81e8b1eb550d68)

[sgasho]

Both runs took 3 hours.

It is slow, but it seems comparable to some of the slower existing auto jobs, dist-aarch64-linux, for example.
Would this be acceptable from the runtime perspective?

I have no idea if this is acceptable from the cost perspective, so I'd keep this as a draft for now

[sgasho]

@bors try jobs=aarch64-apple-distcheck

[ZuseZ4]

This might need a bump https://github.com/rust-lang/rust/pull/153179/changes, but we'll see

[sgasho]

Thanks, bumped

@bors try jobs=aarch64-apple-distcheck

[ZuseZ4]

spurious
@bors retry

[rust-bors]

❗ You can only retry pull requests that are approved and have a previously failed auto build.

[ZuseZ4]

Ah nice, just a normal test failed, the try continues

[rust-bors]

💔 Test for e34fcb9 failed: CI. Failed job:

• try - aarch64-apple-distcheck (web logs, enhanced plaintext logs)

[ZuseZ4]

[sgasho]

Ah, this is expected.
This should be fixed in this PR #156971

[rust-bors]

☔ The latest upstream changes made this pull request unmergeable. Please resolve the merge conflicts.