error[E0792]: expected generic type parameter, found `i32`
  --> $DIR/issue-99073-2.rs:9:22
   |
LL | fn test<T: Display>(t: T, recurse: bool) -> impl Display {
   |         - this generic parameter must be used with a generic type parameter
LL |     let f = || {
LL |         let i: u32 = test::<i32>(-1, false);
   |                      ^^^^^^^^^^^^^^^^^^^^^^

error: concrete type differs from previous defining opaque type use
  --> $DIR/issue-99073-2.rs:9:22
   |
LL |         let i: u32 = test::<i32>(-1, false);
   |                      ^^^^^^^^^^^^^^^^^^^^^^ expected `T`, got `u32`
   |
note: previous use here
  --> $DIR/issue-99073-2.rs:7:45
   |
LL | fn test<T: Display>(t: T, recurse: bool) -> impl Display {
   |                                             ^^^^^^^^^^^^

error: aborting due to 2 previous errors

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