src/test/ui/type-alias-impl-trait/generic_underconstrained2.stderr

error: at least one trait must be specified
  --> $DIR/generic_underconstrained2.rs:5:45
   |
LL | type Underconstrained<T: std::fmt::Debug> = impl 'static;
   |                                             ^^^^^^^^^^^^

error: at least one trait must be specified
  --> $DIR/generic_underconstrained2.rs:14:46
   |
LL | type Underconstrained2<T: std::fmt::Debug> = impl 'static;
   |                                              ^^^^^^^^^^^^

error[E0277]: `U` doesn't implement `Debug`
  --> $DIR/generic_underconstrained2.rs:5:45
   |
LL | type Underconstrained<T: std::fmt::Debug> = impl 'static;
   |                                             ^^^^^^^^^^^^ `U` cannot be formatted using `{:?}` because it doesn't implement `Debug`
...
LL |     5u32
   |     ---- this returned value is of type `u32`
   |
   = note: the return type of a function must have a statically known size
help: consider restricting type parameter `U`
   |
LL | fn underconstrained<U: Debug>(_: U) -> Underconstrained<U> {
   |                      ^^^^^^^

error[E0277]: `V` doesn't implement `Debug`
  --> $DIR/generic_underconstrained2.rs:14:46
   |
LL | type Underconstrained2<T: std::fmt::Debug> = impl 'static;
   |                                              ^^^^^^^^^^^^ `V` cannot be formatted using `{:?}` because it doesn't implement `Debug`
...
LL |     5u32
   |     ---- this returned value is of type `u32`
   |
   = note: the return type of a function must have a statically known size
help: consider restricting type parameter `V`
   |
LL | fn underconstrained2<U, V: Debug>(_: U, _: V) -> Underconstrained2<V> {
   |                          ^^^^^^^

error: aborting due to 4 previous errors

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