error[E0277]: the trait bound `Self: Tr<U>` is not satisfied
  --> $DIR/type-params-in-different-spaces-2.rs:10:9
   |
LL |     fn op(_: T) -> Self;
   |     -------------------- required by `Tr::op`
...
LL |     fn test<U>(u: U) -> Self {
   |                             - help: consider further restricting `Self`: `where Self: Tr<U>`
LL |         Tr::op(u)
   |         ^^^^^^ the trait `Tr<U>` is not implemented for `Self`

error[E0277]: the trait bound `Self: Tr<U>` is not satisfied
  --> $DIR/type-params-in-different-spaces-2.rs:16:9
   |
LL |     fn op(_: T) -> Self;
   |     -------------------- required by `Tr::op`
...
LL |     fn test<U>(u: U) -> Self {
   |                             - help: consider further restricting `Self`: `where Self: Tr<U>`
LL |         Tr::op(u)
   |         ^^^^^^ the trait `Tr<U>` is not implemented for `Self`

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0277`.