auto: librustc: Allow mutable box substructure to be borrowed without requirin... #4826
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…ring purity. Closes rust-lang#4825.
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I thought that we didn't want to allow these sorts of borrows? I was planning on ensuring that they can't happen. In particular I expect the for loop there to yield an error since you are borrowing a substructure of an |
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OK, but I feel like that error should be emitted deliberately, not only allowed if pure. |
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OK. r+ |
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clone_on_copy - add machine applicability Fix rust-lang#4826. Change the applicability of the lint clone_on_copy. Split a test file and run rustfix on the clone_on_copy part. changelog: clone_on_copy - add machine applicability
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...g purity. Closes #4825.
r? @nikomatsakis