error[E0597]: `x` does not live long enough --> $DIR/promoted-annotation.rs:6:7 | LL | fn foo<'a>() { | -- lifetime `'a` defined here LL | let x = 0; LL | let f = &drop::<&'a i32>; | ---------------- assignment requires that `x` is borrowed for `'a` LL | f(&x); | ^^ borrowed value does not live long enough LL | LL | } | - `x` dropped here while still borrowed error: aborting due to previous error For more information about this error, try `rustc --explain E0597`.