error: lifetime may not live long enough --> $DIR/mir_check_cast_unsafe_fn.rs:7:14 | LL | fn bar<'a>(input: &'a u32, f: fn(&'a u32) -> &'a u32) -> &'static u32 { | -- lifetime `'a` defined here ... LL | unsafe { g(input) } | ^^^^^^^^ returning this value requires that `'a` must outlive `'static` error: aborting due to 1 previous error