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Rollup of 8 pull requests#148388

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matthiaskrgr wants to merge 20 commits intorust-lang:masterfrom
matthiaskrgr:rollup-neuxjk3
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Rollup of 8 pull requests#148388
matthiaskrgr wants to merge 20 commits intorust-lang:masterfrom
matthiaskrgr:rollup-neuxjk3

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@matthiaskrgr matthiaskrgr commented Nov 2, 2025

Successful merges:

r? @ghost
@rustbot modify labels: rollup

Create a similar rollup

yotamofek and others added 20 commits October 22, 2025 13:06
This "cleanup" function is more than a decade old, and I can't find any
evidence of modern-day bootstrap being able to pass any of these flags to
`--host-rustcflags` or `--target-rustcflags`.
There are probably plenty of tests that will check this incidentally, but it's
convenient to have a dedicated self-test.
In particular, this eliminates the cryptic `of: &TestPaths` parameters.
This method no longer returns a `TestPaths`, so the old name is no longer
appropriate.
…r=joboet

Implement `strip_circumfix` lib feature

Tracking issue: rust-lang#147946
split definition and use site hidden tys

Tracking this implicitly is kinda messy and easy to get wrong.

r? `@BoxyUwU`
compiletest: Remove `cleanup_debug_info_options`

This "cleanup" function is more than a decade old, and I can't find any evidence of modern-day bootstrap being able to pass any of these flags to `--host-rustcflags` or `--target-rustcflags`.

I thought about replacing the cleanup with an assertion, but I think it's better to delete it entirely for now, and re-add checks later if they're motivated by actual problems in practice.

In addition to deleting some old and confusing code, this also lets us remove three instances of duplicating `TestCx`, which is the biggest win.

r? jieyouxu
compiletest: Don't modify `testpaths` when creating aux contexts

Modifying `TestCx::testpaths` makes it vastly harder to reason about how compiletest is using test paths, and can be avoided without much trouble by simply passing explicit source-file paths into a small number of auxiliary-aware methods.

---

This PR was originally based on a much larger change that split `TestPaths` into multiple structs and multiple `TestCx` fields (as seen in early revisions of rust-lang#148160), but after further cleanups it turned out that very few tweaks were actually needed to avoid changes to `testpaths`.

r? jieyouxu
…ercote

Do not emit solver errors that contain error types

any follow-up errors are going to either be duplicates or often disappear if the error itself is fixed.

in this PR it mostly silences dyn-compat errors as all the other errors are already deduplicated outside of the test suite. The dyn compat errors are independent errors and I think if the dyn compatiblity depended on an error type it would not actually show, so this is PR is actually silencing independent errors, too.

I am opening this PR because I am seeing lots of `{type error}: const Trait` errors when adding more const checking. So instead of targetting just those specific errors, I wanted to try out fully avoiding such errors near the trait solver.

cc ```@rust-lang/types``` for thoughts
temporary-lifetime-extension.rs test works in all editions
…r=Noratrieb

docs: makes a note about possible building  `rustc 1.91.0 + host tools` for win7

I have make notes in docs that there is possible to build host tools for target `x86_64-win7-windows-msvc`.

<img width="668" height="331" alt="image" src="https://github.com/user-attachments/assets/0335bc72-963c-4bfd-9910-61963dbf7dd7" />

r? `````@roblabla`````

`````@rustbot````` label A-docs  O-windows-7

P.S. prebuilt binaries can be found [here](https://github.com/Fenex/rust-win7/releases).
…ouxu

Use --print host-tuple to get the host

`--print host-tuple` has been available since 1.84 so there's no longer a need to parse the output of `-vV`. Especially since this script is shipped with the toolchain.
@rustbot rustbot added A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver) rollup A PR which is a rollup labels Nov 2, 2025
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@bors r+ rollup=never p=5

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bors commented Nov 2, 2025

📌 Commit eb3088d has been approved by matthiaskrgr

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Nov 2, 2025
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let add the miri bump actually

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A-compiletest Area: The compiletest test runner A-testsuite Area: The testsuite used to check the correctness of rustc rollup A PR which is a rollup S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. T-libs Relevant to the library team, which will review and decide on the PR/issue. T-rustdoc Relevant to the rustdoc team, which will review and decide on the PR/issue. WG-trait-system-refactor The Rustc Trait System Refactor Initiative (-Znext-solver)

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