error[E0716]: temporary value dropped while borrowed
  --> $DIR/regions-free-region-ordering-caller1.rs:9:27
   |
LL | fn call1<'a>(x: &'a usize) {
   |          -- lifetime `'a` defined here
...
LL |     let z: &'a & usize = &(&y);
   |            -----------    ^^^^ creates a temporary value which is freed while still in use
   |            |
   |            type annotation requires that borrow lasts for `'a`
...
LL | }
   | - temporary value is freed at the end of this statement

error[E0597]: `y` does not live long enough
  --> $DIR/regions-free-region-ordering-caller1.rs:9:27
   |
LL | fn call1<'a>(x: &'a usize) {
   |          -- lifetime `'a` defined here
...
LL |     let y: usize = 3;
   |         - binding `y` declared here
LL |     let z: &'a & usize = &(&y);
   |            -----------    ^^^^ borrowed value does not live long enough
   |            |
   |            type annotation requires that `y` is borrowed for `'a`
...
LL | }
   | - `y` dropped here while still borrowed

error: aborting due to 2 previous errors

Some errors have detailed explanations: E0597, E0716.
For more information about an error, try `rustc --explain E0597`.