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bootstrap: work around "unused attribute" errors in incremental stdlib rebuilds. #70881

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Apr 11, 2020
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bootstrap: work around "unused attribute" errors in incremental stdlib rebuilds. #70881

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7 changes: 7 additions & 0 deletions src/bootstrap/builder.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1099,6 +1099,13 @@ impl<'a> Builder<'a> {

if self.config.deny_warnings {
rustflags.arg("-Dwarnings");

// FIXME(#58633) hide "unused attribute" errors in incremental
// builds of the standard library, as the underlying checks are
// not yet properly integrated with incremental recompilation.
if mode == Mode::Std && compiler.stage == 0 && self.config.incremental {
rustflags.arg("-Aunused-attributes");
}
}
}

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