error: lifetime may not live long enough --> $DIR/lub-if.rs:28:9 | LL | pub fn opt_str2<'a>(maybestr: &'a Option) -> &'static str { | -- lifetime `'a` defined here ... LL | s | ^ returning this value requires that `'a` must outlive `'static` error: lifetime may not live long enough --> $DIR/lub-if.rs:36:9 | LL | pub fn opt_str3<'a>(maybestr: &'a Option) -> &'static str { | -- lifetime `'a` defined here ... LL | s | ^ returning this value requires that `'a` must outlive `'static` error: aborting due to 2 previous errors