fix: repair toolchains missing their installed manifest#4954
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ychampion wants to merge 3 commits into
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rami3l
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Jul 12, 2026
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rami3l
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Jul 12, 2026
djc
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Jul 13, 2026
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Ok looking |
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Done. I rewrote both commit messages as concise subjects and verified that the resulting tree is unchanged. |
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Did you miss the earlier feedback from @rami3l? |
Tested: cargo test --features test --test test_bonanza missing_manifest Tested: cargo check --all --all-targets --features test
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Author
Yeah maybe, could you reference it? |
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I meant the commit you added, but the new commit should be squashed into the first one. |
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Summary
Why
A matching update hash could skip the channel manifest download even after the installed manifest was deleted, leaving the toolchain broken while rustup reported it as unchanged.
Fixes #4825.
Validation
cargo test --features=test --test test_bonanza suite::cli_rustup::- 130 passedcargo test --features=test --lib v2_manifest_checksum_mismatch_surfaces_error- passedcargo clippy --features=test --all-targets -- -D warnings- passedcargo fmt --all -- --check- passed