error[E0716]: temporary value dropped while borrowed
  --> $DIR/const-int-sign.rs:2:29
   |
LL |     let x: &'static bool = &(5_i32.is_negative());
   |            -------------    ^^^^^^^^^^^^^^^^^^^^^ creates a temporary value which is freed while still in use
   |            |
   |            type annotation requires that borrow lasts for `'static`
...
LL | }
   | - temporary value is freed at the end of this statement

error[E0716]: temporary value dropped while borrowed
  --> $DIR/const-int-sign.rs:4:29
   |
LL |     let y: &'static bool = &(5_i32.is_positive());
   |            -------------    ^^^^^^^^^^^^^^^^^^^^^ creates a temporary value which is freed while still in use
   |            |
   |            type annotation requires that borrow lasts for `'static`
LL |
LL | }
   | - temporary value is freed at the end of this statement

error: aborting due to 2 previous errors

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