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Running run-make tests performs unnecessary rebuilds #126464

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#126479
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Running run-make tests performs unnecessary rebuilds#126464
#126479
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C-bugCategory: This is a bug.T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)
@Kobzol

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@Kobzol
Kobzol
opened on Jun 14, 2024

With the latest master, when I run a run-make test twice in a row, bootstrap rebuilds lld-wrapper and rustdoc:

./x test tests/run-make/CURRENT_RUSTC_VERSION/
./x test tests/run-make/CURRENT_RUSTC_VERSION/
<lld-wrapper + rustdoc rebuilt>

This has to be a recent regression, it didn't happen until ~yesterday. Confirmed with @jieyouxu that it also happens for them.

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    C-bugCategory: This is a bug.T-bootstrapRelevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap)

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