rust/src/test/ui/wf/wf-inherent-impl-where-clause.stderr
2021-03-31 09:47:31 +08:00

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error[E0277]: the trait bound `U: Copy` is not satisfied
--> $DIR/wf-inherent-impl-where-clause.rs:11:29
|
LL | trait ExtraCopy<T:Copy> { }
| ---- required by this bound in `ExtraCopy`
...
LL | impl<T,U> Foo<T,U> where T: ExtraCopy<U>
| ^^^^^^^^^^^^ the trait `Copy` is not implemented for `U`
|
help: consider further restricting type parameter `U`
|
LL | impl<T,U> Foo<T,U> where T: ExtraCopy<U>, U: std::marker::Copy
| ^^^^^^^^^^^^^^^^^^^^^^
error: aborting due to previous error
For more information about this error, try `rustc --explain E0277`.