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Clear incremental cache when stage1 compiler is rebuilt #86641

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Clear incremental cache when stage1 compiler is rebuilt #86641

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8 changes: 3 additions & 5 deletions src/bootstrap/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1072,14 +1072,12 @@ impl<'a> Builder<'a> {
let libdir = self.rustc_libdir(compiler);

// Clear the output directory if the real rustc we're using has changed;
// Cargo cannot detect this as it thinks rustc is bootstrap/debug/rustc.
// Cargo usually cannot detect this because we use the same version string for all stage1
// builds, regardless of the git commit.
//
// Avoid doing this during dry run as that usually means the relevant
// compiler is not yet linked/copied properly.
//
// Only clear out the directory if we're compiling std; otherwise, we
// should let Cargo take care of things for us (via depdep info)
if !self.config.dry_run && mode == Mode::Std && cmd == "build" {
if !self.config.dry_run && ["build", "check"].contains(&cmd) {
self.clear_if_dirty(&out_dir, &self.rustc(compiler));
}

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