1 error[E0277]: the trait bound `T: std::marker::Copy` is not satisfied
2 --> $DIR/wf-in-fn-type-ret.rs:9:5
4 LL | struct MustBeCopy<T:Copy> {
5 | ---- required by this bound in `MustBeCopy`
7 LL | x: fn() -> MustBeCopy<T>
8 | ^^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::marker::Copy` is not implemented for `T`
10 help: consider restricting type parameter `T`
12 LL | struct Foo<T: std::marker::Copy> {
15 error: aborting due to previous error
17 For more information about this error, try `rustc --explain E0277`.