error[E0792]: expected generic type parameter, found `u8`
  --> $DIR/non-defining-use.rs:4:12
   |
LL | fn foo<T>() -> impl Sized {
   |        - this generic parameter must be used with a generic type parameter
LL |     let _: () = foo::<u8>();
   |            ^^

error[E0792]: expected generic type parameter, found `u8`
  --> $DIR/non-defining-use.rs:8:12
   |
LL | fn bar<T>(val: T) -> impl Sized {
   |        - this generic parameter must be used with a generic type parameter
LL |     let _: u8 = bar(0u8);
   |            ^^

error: concrete type differs from previous defining opaque type use
  --> $DIR/non-defining-use.rs:8:17
   |
LL |     let _: u8 = bar(0u8);
   |                 ^^^^^^^^ expected `T`, got `u8`
   |
note: previous use here
  --> $DIR/non-defining-use.rs:7:22
   |
LL | fn bar<T>(val: T) -> impl Sized {
   |                      ^^^^^^^^^^

error: aborting due to 3 previous errors

For more information about this error, try `rustc --explain E0792`.