Make sure we note ambiguity causes on positive/negative impl conflicts #134639
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| LL | impl MyTrait for String { } | ||
| | ^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `String` | ||
| | | ||
| = note: upstream crates may add a new impl of trait `std::marker::Copy` for type `std::string::String` in future versions |
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@bors r+ rollup |
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…iaskrgr Rollup of 4 pull requests Successful merges: - rust-lang#134599 (Detect invalid exprs in parser used by pretty-printer tests) - rust-lang#134602 (Document `PointerLike` implementation restrictions.) - rust-lang#134635 (Don't ICE on illegal `dyn*` casts) - rust-lang#134639 (Make sure we note ambiguity causes on positive/negative impl conflicts) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#134639 - compiler-errors:negative-ambiguity-causes, r=oli-obk Make sure we note ambiguity causes on positive/negative impl conflicts Fixes rust-lang#134632 by explaining why the error must be
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Fixes #134632 by explaining why the error must be