error[E0308]: mismatched types
  --> $DIR/pin-reborrow-const-as-mut.rs:14:9
   |
LL |     foo(x);
   |     --- ^ types differ in mutability
   |     |
   |     arguments to this function are incorrect
   |
   = note: expected struct `Pin<&mut Foo>`
              found struct `Pin<&Foo>`
note: function defined here
  --> $DIR/pin-reborrow-const-as-mut.rs:10:4
   |
LL | fn foo(_: Pin<&mut Foo>) {
   |    ^^^ ----------------

error: aborting due to 1 previous error

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