fix: preserve jobserver file descriptors on rustc invocation in fix_exec_rustc
#12951
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Update cargo 12 commits in 7046d992f9f32ba209a8079f662ebccf9da8de25..6790a5127895debec95c24aefaeb18e059270df3 2023-11-08 03:24:57 +0000 to 2023-11-10 17:09:35 +0000 - refactor(source): Prepare for new PackageIDSpec syntax (rust-lang/cargo#12938) - credential: include license files in all published crates (rust-lang/cargo#12953) - fix: preserve jobserver file descriptors on rustc invocation in `fix_exec_rustc` (rust-lang/cargo#12951) - refactor(resolver): Consolidate logic in `VersionPreferences` (rust-lang/cargo#12930) - refactor(toml): Simplify code to make schema split easier (rust-lang/cargo#12948) - Filter `cargo-credential-*` dependencies by OS (rust-lang/cargo#12949) - refactor(util): Pull out `mod util_semver` (rust-lang/cargo#12940) - Fix the invalidate feature name message (rust-lang/cargo#12939) - refactor(util): Prepare for splitting out semver logic (rust-lang/cargo#12926) - feat: Make browser links out of HTML file paths (rust-lang/cargo#12889) - Do not allow empty feature name (rust-lang/cargo#12928) - fix(timings): unnecessary backslash when error happens (rust-lang/cargo#12934) r? ghost
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Update cargo 12 commits in 7046d992f9f32ba209a8079f662ebccf9da8de25..6790a5127895debec95c24aefaeb18e059270df3 2023-11-08 03:24:57 +0000 to 2023-11-10 17:09:35 +0000 - refactor(source): Prepare for new PackageIDSpec syntax (rust-lang/cargo#12938) - credential: include license files in all published crates (rust-lang/cargo#12953) - fix: preserve jobserver file descriptors on rustc invocation in `fix_exec_rustc` (rust-lang/cargo#12951) - refactor(resolver): Consolidate logic in `VersionPreferences` (rust-lang/cargo#12930) - refactor(toml): Simplify code to make schema split easier (rust-lang/cargo#12948) - Filter `cargo-credential-*` dependencies by OS (rust-lang/cargo#12949) - refactor(util): Pull out `mod util_semver` (rust-lang/cargo#12940) - Fix the invalidate feature name message (rust-lang/cargo#12939) - refactor(util): Prepare for splitting out semver logic (rust-lang/cargo#12926) - feat: Make browser links out of HTML file paths (rust-lang/cargo#12889) - Do not allow empty feature name (rust-lang/cargo#12928) - fix(timings): unnecessary backslash when error happens (rust-lang/cargo#12934) r? ghost
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`cargo fix`: always inherit the jobserver #12951 changed `cargo fix` to ensure that `rustc` has access to the jobserver. However, it only did that for the final "verification" step. It was not set for any of the previous calls to rustc (which is up to ~5 calls). I'm not sure if this was done intentionally, I did not see any discussion of this in #12951. This isn't too important in the grand scheme of things, because `rustc` is not doing codegen, so the parallel behavior is currently not used. However, this removes an extraneous `warning: failed to connect to jobserver from environment variable` warning that is printed in cargo's log every time it runs rustc. It also might be relevant in the future if rustc enables the parallel frontend.
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Similar to #12447
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cargo fixinvokescargo rustc. It sends environment variable which points to closed file descriptors.This PR makes cargo compatible with rust-lang/rust#113730.
It should be enough to have tests in rustc. It seems to be good to have more centralized way to pass jobserver.