Clear out memoized hashes before building crates #7373
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Build script updates during execution can change the memoized hash of a `Fingerprint`, and while previously we cleared out a single build script's memoized hash we forgot to clear out everything that depended on it as well. This commit pessimistically clears out all `Fingerprint` memoized hashes just before building to ensure that during the build everything has the most up-to-date view of the world, and when build scripts change fingerprints everything that depends on them won't have run yet. Closes rust-lang#7362
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Clear out memoized hashes before building crates Build script updates during execution can change the memoized hash of a `Fingerprint`, and while previously we cleared out a single build script's memoized hash we forgot to clear out everything that depended on it as well. This commit pessimistically clears out all `Fingerprint` memoized hashes just before building to ensure that during the build everything has the most up-to-date view of the world, and when build scripts change fingerprints everything that depends on them won't have run yet. Closes #7362
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Build script updates during execution can change the memoized hash of a
Fingerprint, and while previously we cleared out a single buildscript's memoized hash we forgot to clear out everything that depended
on it as well. This commit pessimistically clears out all
Fingerprintmemoized hashes just before building to ensure that during the build
everything has the most up-to-date view of the world, and when build
scripts change fingerprints everything that depends on them won't have
run yet.
Closes #7362