1 error[E0308]: mismatched types
2 --> $DIR/type-params-in-different-spaces-3.rs:3:9
4 LL | trait Tr : Sized {
5 | ---------------- expected type parameter
6 LL | fn test<X>(u: X) -> Self {
7 | - ---- expected `Self` because of return type
11 | ^ expected type parameter `Self`, found type parameter `X`
13 = note: expected type parameter `Self`
14 found type parameter `X`
15 = note: a type parameter was expected, but a different one was found; you might be missing a type parameter or trait bound
16 = note: for more information, visit https://doc.rust-lang.org/book/ch10-02-traits.html#traits-as-parameters
18 error: aborting due to previous error
20 For more information about this error, try `rustc --explain E0308`.