Keep environment variables in a BTreeMap to preserve sort order #7877
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This prevents verbose output from varying between runs due to HashMap (non-)ordering.
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r? @ehuss (rust_highfive has picked a reviewer for you, use r? to override) |
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This seems fine by me, but isn't the output already nondeterministic due to parallelism? I'm curious why we'd want this part to be deterministic but not the whole thing? |
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The order of multiple rustc invocations isn't deterministic, but this makes the individual rustc command lines deterministic, which makes them easier to compare. I was trying to figure out what changed in the rustc command lines between two invocations, and this change made it much easier to do so. |
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Seems good to me. |
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@bors r+ |
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📌 Commit e84a4ed has been approved by |
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Keep environment variables in a BTreeMap to preserve sort order This prevents verbose output from varying between runs due to HashMap (non-)ordering.
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☀️ Test successful - checks-azure |
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Update cargo 9 commits in 3c53211c3d7fee4f430f170115af5baad17a3da9..e02974078a692d7484f510eaec0e88d1b6cc0203 2020-02-07 15:35:03 +0000 to 2020-02-18 15:24:43 +0000 - Set an environment variable for tests to find executables. (rust-lang/cargo#7697) - Rework internal errors. (rust-lang/cargo#7896) - Improvements to StringList config handling. (rust-lang/cargo#7891) - Add new/old rustflags to fingerprint log. (rust-lang/cargo#7890) - Fix inaccurate doc comment on `env_args`. (rust-lang/cargo#7889) - Add some extra fingerprint debug information. (rust-lang/cargo#7888) - Link the licenses into crates/cargo-platform (rust-lang/cargo#7886) - Modify test to make `rustc` PR mergeable (rust-lang/cargo#7883) - Keep environment variables in a BTreeMap to preserve sort order (rust-lang/cargo#7877)
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This prevents verbose output from varying between runs due to HashMap
(non-)ordering.