1 error[E0277]: the trait bound `&mut Baz: Happy` is not satisfied
2 --> $DIR/multiple-1.rs:52:9
4 LL | fn foo<T>(_: T) where T: Happy {}
5 | ----- required by this bound in `foo`
8 | ^^^^^^^^ the trait `Happy` is not implemented for `&mut Baz`
10 error: aborting due to previous error
12 For more information about this error, try `rustc --explain E0277`.