1 error: at least one trait must be specified
2 --> $DIR/generic_underconstrained2.rs:8:45
4 LL | type Underconstrained<T: std::fmt::Debug> = impl 'static;
7 error: at least one trait must be specified
8 --> $DIR/generic_underconstrained2.rs:17:46
10 LL | type Underconstrained2<T: std::fmt::Debug> = impl 'static;
13 error[E0277]: `U` doesn't implement `Debug`
14 --> $DIR/generic_underconstrained2.rs:12:33
16 LL | type Underconstrained<T: std::fmt::Debug> = impl 'static;
17 | --------------- required by this bound in `Underconstrained`
19 LL | fn underconstrained<U>(_: U) -> Underconstrained<U> {
20 | ^^^^^^^^^^^^^^^^^^^ `U` cannot be formatted using `{:?}` because it doesn't implement `Debug`
22 help: consider restricting type parameter `U`
24 LL | fn underconstrained<U: std::fmt::Debug>(_: U) -> Underconstrained<U> {
27 error[E0277]: `V` doesn't implement `Debug`
28 --> $DIR/generic_underconstrained2.rs:21:43
30 LL | type Underconstrained2<T: std::fmt::Debug> = impl 'static;
31 | --------------- required by this bound in `Underconstrained2`
33 LL | fn underconstrained2<U, V>(_: U, _: V) -> Underconstrained2<V> {
34 | ^^^^^^^^^^^^^^^^^^^^ `V` cannot be formatted using `{:?}` because it doesn't implement `Debug`
36 help: consider restricting type parameter `V`
38 LL | fn underconstrained2<U, V: std::fmt::Debug>(_: U, _: V) -> Underconstrained2<V> {
41 error: aborting due to 4 previous errors
43 For more information about this error, try `rustc --explain E0277`.