error[E0308]: mismatched types
  --> $DIR/fn-item-type.rs:23:19
   |
LL |     eq(foo::<u8>, bar::<u8>);
   |                   ^^^^^^^^^ expected fn item, found a different fn item
   |
   = note: expected type `fn(isize) -> isize {foo::<u8>}`
              found type `fn(isize) -> isize {bar::<u8>}`

error[E0308]: mismatched types
  --> $DIR/fn-item-type.rs:29:19
   |
LL |     eq(foo::<u8>, foo::<i8>);
   |                   ^^^^^^^^^ expected u8, found i8
   |
   = note: expected type `fn(isize) -> isize {foo::<u8>}`
              found type `fn(isize) -> isize {foo::<i8>}`

error[E0308]: mismatched types
  --> $DIR/fn-item-type.rs:33:23
   |
LL |     eq(bar::<String>, bar::<Vec<u8>>);
   |                       ^^^^^^^^^^^^^^ expected struct `std::string::String`, found struct `std::vec::Vec`
   |
   = note: expected type `fn(isize) -> isize {bar::<std::string::String>}`
              found type `fn(isize) -> isize {bar::<std::vec::Vec<u8>>}`

error[E0308]: mismatched types
  --> $DIR/fn-item-type.rs:40:26
   |
LL |     eq(<u8 as Foo>::foo, <u16 as Foo>::foo);
   |                          ^^^^^^^^^^^^^^^^^ expected u8, found u16
   |
   = note: expected type `fn() {<u8 as Foo>::foo}`
              found type `fn() {<u16 as Foo>::foo}`

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0308`.