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

   1 error: at least one trait must be specified
   2   --> $DIR/generic_underconstrained2.rs:5:45
   3    |
   4 LL | type Underconstrained<T: std::fmt::Debug> = impl 'static;
   5    |                                             ^^^^^^^^^^^^
   6
   7 error: at least one trait must be specified
   8   --> $DIR/generic_underconstrained2.rs:14:46
   9    |
  10 LL | type Underconstrained2<T: std::fmt::Debug> = impl 'static;
  11    |                                              ^^^^^^^^^^^^
  12
  13 error[E0277]: `U` doesn't implement `Debug`
  14   --> $DIR/generic_underconstrained2.rs:9:33
  15    |
  16 LL | type Underconstrained<T: std::fmt::Debug> = impl 'static;
  17    |                          --------------- required by this bound in `Underconstrained`
  18 ...
  19 LL | fn underconstrained<U>(_: U) -> Underconstrained<U> {
  20    |                                 ^^^^^^^^^^^^^^^^^^^ `U` cannot be formatted using `{:?}` because it doesn't implement `Debug`
  21    |
  22 help: consider restricting type parameter `U`
  23    |
  24 LL | fn underconstrained<U: Debug>(_: U) -> Underconstrained<U> {
  25    |                      ^^^^^^^
  26
  27 error[E0277]: `V` doesn't implement `Debug`
  28   --> $DIR/generic_underconstrained2.rs:18:43
  29    |
  30 LL | type Underconstrained2<T: std::fmt::Debug> = impl 'static;
  31    |                           --------------- required by this bound in `Underconstrained2`
  32 ...
  33 LL | fn underconstrained2<U, V>(_: U, _: V) -> Underconstrained2<V> {
  34    |                                           ^^^^^^^^^^^^^^^^^^^^ `V` cannot be formatted using `{:?}` because it doesn't implement `Debug`
  35    |
  36 help: consider restricting type parameter `V`
  37    |
  38 LL | fn underconstrained2<U, V: Debug>(_: U, _: V) -> Underconstrained2<V> {
  39    |                          ^^^^^^^
  40
  41 error: aborting due to 4 previous errors
  42
  43 For more information about this error, try `rustc --explain E0277`.