error[E0716]: temporary value dropped while borrowed
  --> $DIR/regions-free-region-ordering-caller1.rs:19:27
   |
LL |     let z: &'a & usize = &(&y);
   |                           ^^^^ creates a temporary which is freed while still in use
...
LL | }
   | - temporary value is freed at the end of this statement
   |
note: borrowed value must be valid for the lifetime 'a as defined on the function body at 15:10...
  --> $DIR/regions-free-region-ordering-caller1.rs:15:10
   |
LL | fn call1<'a>(x: &'a usize) {
   |          ^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0716`.