1 error: lifetime may not live long enough
2 --> $DIR/regions-creating-enums4.rs:7:5
4 LL | fn mk_add_bad2<'a,'b>(x: &'a Ast<'a>, y: &'a Ast<'a>, z: &Ast) -> Ast<'b> {
5 | -- -- lifetime `'b` defined here
7 | lifetime `'a` defined here
9 | ^^^^^^^^^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a`
11 = help: consider adding the following bound: `'a: 'b`
13 error: aborting due to previous error