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Require approval from t-infra instead of t-release on tier bumps #144906

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@Kobzol Kobzol commented Aug 4, 2025

Discussed at https://rust-lang.zulipchat.com/#narrow/channel/242791-t-infra/topic/Tier.201.20target.20promotion.20RFC.20FCP.20sign-offs/with/532735844.

I also changed "viability and value" to just "viability". I think that t-infra should decide whether it's viable to support a given target on our CI. The value should be determined by t-compiler.

r? @jieyouxu

@rustbot rustbot added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Aug 4, 2025
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Thanks, this looks good to me. I would like a compiler lead to sign-off, since it's technically a change in how we do Tier 1 target promotions.

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jieyouxu commented Aug 4, 2025

r? compiler_leads

@rustbot rustbot assigned davidtwco and unassigned jieyouxu Aug 4, 2025
@wesleywiser
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Has the release team weighed in on this? I agree this conceptually makes more sense but since the original policy was the result of an RFC, I think we should do a T-release/T-infra FCP to confirm this is what both teams want.

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Kobzol commented Aug 4, 2025

I asked Mark, who was fine with it (along with most members of t-infra), but yeah, we should probably involve the whole release team.

@Noratrieb
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@rust-lang/release hi everyone, this change takes you off the compiler target tier changes FCPs, are y'all happy with that or do you see a reason to involve the release team there?

@Noratrieb Noratrieb added T-infra Relevant to the infrastructure team, which will review and decide on the PR/issue. T-release Relevant to the release subteam, which will review and decide on the PR/issue. labels Aug 4, 2025
@Mark-Simulacrum
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@rfcbot fcp merge

Historically the release team was on the FCP because early discussions imagined we'd be checking the "value" of a target, but I think T-compiler and T-infra are better positioned for this anyway (e.g., pulling statistics on usage, deciding how different individual targets are - and so how much usage of one indicates reason to promote others) and T-release doesn't have a large body of stakeholders in various platforms. T-compiler also has established processes for exploring these questions as part of tier 2 and 3 target proposals.

So proposing we merge this, happy to see any concerns registered.

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rfcbot commented Aug 4, 2025

Team member @Mark-Simulacrum has proposed to merge this. The next step is review by the rest of the tagged team members:

No concerns currently listed.

Once a majority of reviewers approve (and at most 2 approvals are outstanding), this will enter its final comment period. If you spot a major issue that hasn't been raised at any point in this process, please speak up!

See this document for info about what commands tagged team members can give me.

@rfcbot rfcbot added proposed-final-comment-period Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off. disposition-merge This issue / PR is in PFCP or FCP with a disposition to merge it. labels Aug 4, 2025
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cuviper commented Aug 4, 2025

@rfcbot reviewed

I don't have a problem with switching release to infra here. However, on a tangent, I wonder why the "value" question has been delegated to compiler and not also libs, especially when non-host targets are considered.
(although I do realized that adding another team to fcps would be hard)

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jieyouxu commented Aug 4, 2025

I don't have a problem with switching release to infra here. However, on a tangent, I wonder why the "value" question has been delegated to compiler and not also libs, especially when non-host targets are considered.

In practice, I think libs do get asked about if the libs team would have concerns with promoting a target beyond Tier 3, but mostly from an impl POV (and not necessarily "value"). For example: rust-lang/compiler-team#864 (comment). (But this is also not necessarily "written down".)

@rfcbot rfcbot added the final-comment-period In the final comment period and will be merged soon unless new substantive objections are raised. label Aug 7, 2025
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rfcbot commented Aug 7, 2025

🔔 This is now entering its final comment period, as per the review above. 🔔

@rfcbot rfcbot removed the proposed-final-comment-period Proposed to merge/close by relevant subteam, see T-<team> label. Will enter FCP once signed off. label Aug 7, 2025
@davidtwco davidtwco added S-waiting-on-fcp Status: PR is in FCP and is awaiting for FCP to complete. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 13, 2025
@rfcbot rfcbot added finished-final-comment-period The final comment period is finished for this PR / Issue. to-announce Announce this issue on triage meeting and removed final-comment-period In the final comment period and will be merged soon unless new substantive objections are raised. labels Aug 17, 2025
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rfcbot commented Aug 17, 2025

The final comment period, with a disposition to merge, as per the review above, is now complete.

As the automated representative of the governance process, I would like to thank the author for their work and everyone else who contributed.

This will be merged soon.

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@bors r+ rollup

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bors commented Aug 18, 2025

📌 Commit d85a645 has been approved by davidtwco

It is now in the queue for this repository.

@bors bors added the S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. label Aug 18, 2025
@davidtwco davidtwco removed the S-waiting-on-fcp Status: PR is in FCP and is awaiting for FCP to complete. label Aug 18, 2025
jhpratt added a commit to jhpratt/rust that referenced this pull request Aug 18, 2025
…idtwco

Require approval from t-infra instead of t-release on tier bumps

Discussed at https://rust-lang.zulipchat.com/#narrow/channel/242791-t-infra/topic/Tier.201.20target.20promotion.20RFC.20FCP.20sign-offs/with/532735844.

I also changed "viability and value" to just "viability". I think that t-infra should decide whether it's viable to support a given target on our CI. The value should be determined by t-compiler.

r? `@jieyouxu`
jhpratt added a commit to jhpratt/rust that referenced this pull request Aug 18, 2025
…idtwco

Require approval from t-infra instead of t-release on tier bumps

Discussed at https://rust-lang.zulipchat.com/#narrow/channel/242791-t-infra/topic/Tier.201.20target.20promotion.20RFC.20FCP.20sign-offs/with/532735844.

I also changed "viability and value" to just "viability". I think that t-infra should decide whether it's viable to support a given target on our CI. The value should be determined by t-compiler.

r? ``@jieyouxu``
bors added a commit that referenced this pull request Aug 19, 2025
Rollup of 33 pull requests

Successful merges:

 - #139345 (Extend `QueryStability` to handle `IntoIterator` implementations)
 - #140740 (Add `-Zindirect-branch-cs-prefix`)
 - #142079 (nll-relate: improve hr opaque types support)
 - #142938 (implement std::fs::set_permissions_nofollow on unix)
 - #144767 (Correct some grammar in integer documentation)
 - #144906 (Require approval from t-infra instead of t-release on tier bumps)
 - #144983 (Rehome 37 `tests/ui/issues/` tests to other subdirectories under `tests/ui/`)
 - #145025 (run spellcheck as a tidy extra check in ci)
 - #145166 (suggest using `pub(crate)` for E0364)
 - #145255 (dec2flt: Provide more valid inputs examples)
 - #145306 (Add tracing to various miscellaneous functions)
 - #145336 (Hide docs for `core::unicode`)
 - #145429 (Couple of codegen_fn_attrs improvements)
 - #145452 (Do not strip binaries in bootstrap everytime if they are unchanged)
 - #145464 (Stabilize `const_pathbuf_osstring_new` feature)
 - #145474 (Properly recover from parenthesized use-bounds (precise capturing lists) plus small cleanups)
 - #145486 (Fix `unicode_data.rs` mention message)
 - #145493 (remove `should_render` in `PrintAttribute` derive)
 - #145505 (Simplify span caches)
 - #145510 (Visit and print async_fut local for async drop.)
 - #145511 (Rust build fails on OpenBSD after using file_lock feature)
 - #145532 (resolve: debug for block module)
 - #145533 (Reorder `lto` options from most to least optimizing)
 - #145537 (Do not consider a `T: !Sized` candidate to satisfy a `T: !MetaSized` obligation.)
 - #145538 (bufreader::Buffer::backshift: don't move the uninit bytes)
 - #145542 (triagebot: Don't warn no-mentions on subtree updates)
 - #145549 (Update rust maintainers in openharmony.md)
 - #145550 (Avoid using `()` in `derive(From)` output.)
 - #145556 (Allow stability attributes on extern crates)
 - #145560 (Remove unused `PartialOrd`/`Ord` from bootstrap)
 - #145568 (ignore frontmatters in `TokenStream::new`)
 - #145571 (remove myself from some adhoc-groups and pings)
 - #145576 (Add change tracker entry for `--timings`)

r? `@ghost`
`@rustbot` modify labels: rollup
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