1 error[E0277]: the trait bound `U: Copy` is not satisfied
2 --> $DIR/wf-struct-bound.rs:10:14
4 LL | where T: ExtraCopy<U>
5 | ^^^^^^^^^^^^ the trait `Copy` is not implemented for `U`
7 note: required by a bound in `ExtraCopy`
8 --> $DIR/wf-struct-bound.rs:7:19
10 LL | trait ExtraCopy<T:Copy> { }
11 | ^^^^ required by this bound in `ExtraCopy`
12 help: consider further restricting type parameter `U`
14 LL | where T: ExtraCopy<U>, U: std::marker::Copy
15 | ++++++++++++++++++++++
17 error: aborting due to previous error
19 For more information about this error, try `rustc --explain E0277`.