Rollup of 9 pull requests#120794

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matthiaskrgr wants to merge 27 commits intorust-lang:masterfrom

matthiaskrgr:rollup-otefhdo

Commits on Feb 1, 2024

Add supporting infrastructure for `run-make` V2 tests
jieyouxu
committed

Commits on Feb 2, 2024

Commits on Feb 3, 2024

std::thread::available_parallelism merging linux/android/freebsd version
devnexen
committed

Commits on Feb 6, 2024

Commits on Feb 7, 2024

No need to take ImplTraitContext by ref
compiler-errors
committed

Commits on Feb 8, 2024