warning: not reporting region error due to nll
  --> $DIR/mir_check_cast_reify.rs:46:25
   |
LL |     let f: fn(_) -> _ = foo;
   |                         ^^^

error: borrowed data escapes outside of function
  --> $DIR/mir_check_cast_reify.rs:48:5
   |
LL | fn bar<'a>(x: &'a u32) -> &'static u32 {
   |            - `x` is a reference that is only valid in the function body
...
LL |     f(x)
   |     ^^^^ `x` escapes the function body here

error: aborting due to previous error