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Since version 2.0.0, proc-macro-crate has assumed it can exec() `env::var("CARGO")` in order to run `cargo locate-project`. This commit adds a crate override to proc-macro-crate which simply writes the path to buildPlatform.cargo into the proc-macro-crate sources. This way we don't need to set `env.CARGO` for every build that depends on proc-macro-crate -- if we do that, the $CARGO environment variable would be visible to the entire build. This could potentially lead to incredibly hard-to-troubleshoot heisenbugs if there is some other crate that expects `env::var("CARGO")` to exist -- that other crate would mysteriously work only in projects that use proc-macro-crate but not anywhere else! |
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.. | ||
build-rust-crate | ||
build-rust-package | ||
fetch-cargo-tarball | ||
hooks | ||
lib | ||
rustc-wrapper | ||
sysroot | ||
test/import-cargo-lock | ||
default-crate-overrides.nix | ||
fetchcargo-default-config.toml | ||
fetchcrate.nix | ||
import-cargo-lock.nix | ||
replace-workspace-values.py |