error[E0716]: temporary value dropped while borrowed --> $DIR/promoted_const_fn_fail.rs:17:27 | LL | let x: &'static u8 = &(bar() + 1); | ----------- ^^^^^^^^^^^ 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: aborting due to previous error For more information about this error, try `rustc --explain E0716`.