Synchronize releases with updates to Rust repository submodule

[tweksteen]

This was previously reported and fixed as a one-off in #5802. But the git submodule reference used in the Rust repository is now 4 months behind the release in this repository. That is, the preview available via rustup is outdated.

Would it be possible to add a step as part of the weekly release, to update the submodule reference in the main Rust repository? Or if weekly is too frequent, settle for a monthly update?

Thanks

[lnicola]

You might have already seen it, but rust-lang/rust#80984 updates the RA submodule.

Ideally we'd make this happen automatically, though.

[tweksteen]

I wasn't, thanks for sharing the link.

Yes, automation would be best. It's also possible to have a manual step as part of the release process in the meantime (for instance, when writing down the ChangeLog).

[lnicola]

I think there's an cargo xtask promote-release subcommand, but I haven't tried it.

Unfortunately, this still doesn't guarantee timely updates. My PR has been open for 5 days and will probably take that much again to get merged.

[Veykril]

We are no longer a submodule of the rust repo but a subtree instead, I don't think automating that will work due to possible conflicts.