rust/tests/ui/coherence/normalize-for-errors.next.stderr
2023-12-05 16:55:10 +00:00

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error[E0119]: conflicting implementations of trait `MyTrait<_>` for type `(Box<(MyType,)>, <_ as Iterator>::Item)`
--> $DIR/normalize-for-errors.rs:16:1
|
LL | impl<T: Copy, S: Iterator> MyTrait<S> for (T, S::Item) {}
| ------------------------------------------------------ first implementation here
LL |
LL | impl<S: Iterator> MyTrait<S> for (Box<<(MyType,) as Mirror>::Assoc>, S::Item) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ conflicting implementation for `(Box<(MyType,)>, <_ as Iterator>::Item)`
|
= note: upstream crates may add a new impl of trait `std::marker::Copy` for type `std::boxed::Box<(MyType,)>` in future versions
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0119`.