Auto merge of #3272 - RalfJung:jobserver, r=RalfJung

update comment about CARGO_MAKEFLAGS
This commit is contained in:
bors 2024-01-22 08:01:11 +00:00
commit 3d63f42616

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@ -501,11 +501,10 @@ pub fn phase_runner(mut binary_args: impl Iterator<Item = String>, phase: Runner
// Set missing env vars. We prefer build-time env vars over run-time ones; see
// <https://github.com/rust-lang/miri/issues/1661> for the kind of issue that fixes.
for (name, val) in info.env {
// `CARGO_MAKEFLAGS` contains information about how to reach the
// jobserver, but by the time the program is being run, that jobserver
// no longer exists. Hence we shouldn't forward this.
// FIXME: Miri builds the final crate without a jobserver.
// This may be fixed with github.com/rust-lang/cargo/issues/12597.
// `CARGO_MAKEFLAGS` contains information about how to reach the jobserver, but by the time
// the program is being run, that jobserver no longer exists (cargo only runs the jobserver
// for the build portion of `cargo run`/`cargo test`). Hence we shouldn't forward this.
// Also see <https://github.com/rust-lang/rust/pull/113730>.
if name == "CARGO_MAKEFLAGS" {
continue;
}