error[E0425]: cannot find value `x` in this scope
  --> $DIR/unboxed-closures-type-mismatch-closure-from-another-scope.rs:2:21
   |
LL |     let x = match **x {
   |                     ^ not found in this scope

error[E0425]: cannot find value `y` in this scope
  --> $DIR/unboxed-closures-type-mismatch-closure-from-another-scope.rs:9:26
   |
LL |         closure(&mut p, &y);
   |                          ^ help: a local variable with a similar name exists: `p`

error[E0308]: mismatched types
  --> $DIR/unboxed-closures-type-mismatch-closure-from-another-scope.rs:9:17
   |
LL |         closure(&mut p, &y);
   |         ------- ^^^^^^ expected `&mut &i32`, found `&mut &()`
   |         |
   |         arguments to this function are incorrect
   |
   = note: expected mutable reference `&mut &i32`
              found mutable reference `&mut &()`
note: closure parameter defined here
  --> $DIR/unboxed-closures-type-mismatch-closure-from-another-scope.rs:8:39
   |
LL |         let mut closure = expect_sig(|p, y| *p = y);
   |                                       ^

error[E0425]: cannot find function `deref` in this scope
  --> $DIR/unboxed-closures-type-mismatch-closure-from-another-scope.rs:13:5
   |
LL |     deref(p);
   |     ^^^^^ not found in this scope
   |
help: use the `.` operator to call the method `Deref::deref` on `&&()`
   |
LL -     deref(p);
LL +     p.deref();
   |

error: aborting due to 4 previous errors

Some errors have detailed explanations: E0308, E0425.
For more information about an error, try `rustc --explain E0308`.