Remove rustc version from stable crate IDs#1127
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Mark-Simulacrum merged 2 commits intorust-lang:masterfrom Dec 21, 2021
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Remove rustc version from stable crate IDs#1127Mark-Simulacrum merged 2 commits intorust-lang:masterfrom
Mark-Simulacrum merged 2 commits intorust-lang:masterfrom
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Since rust-lang/rust#89836, rustc stable crate IDs include a hash of the rustc version (including the git commit it's built from), which means that hashmaps or other structures have different behavior when comparing different rustc builds. This is bad for rustc-perf, as it means that comparing two commits has a source of noise that makes it harder to know what the actual change between two artifacts is.
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CI is failing but that's because of rust-lang/rust#92163, not this PR in particular. |
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Since rust-lang/rust#89836, rustc stable crate IDs include a hash of the
rustc version (including the git commit it's built from), which means
that hashmaps or other structures have different behavior when comparing
different rustc builds. This is bad for rustc-perf, as it means that
comparing two commits has a source of noise that makes it harder to know
what the actual change between two artifacts is.
cc #1126