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This intentionally borrows from `RefCell`s before conditional code to try to prevent regressions like rust-lang#13646 without exhaustively covering every case that could hit these `BorrowMutError`s with complicated tests. I tested this by ensuring the registry code path panicked before rebasing on top of rust-lang#13647. Once I rebased, the panic went away.
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rustbot
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A-filesystem
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Nope, still hitting it. |
Member
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That git commit is broken and got cached? This amends the commit and seems work: #13651 |
Member
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Close in favor of #13651. |
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What does this PR try to resolve?
This intentionally borrows from
RefCells before conditional code to try to prevent regressions like #13646 without exhaustively covering every case that could hit theseBorrowMutErrors with complicated tests.How should we test and review this PR?
I tested this by ensuring the registry code path panicked before rebasing on top of #13647.
Once I rebased, the panic went away.
Additional information
Split off from #13649 to try to avoid appveyor