1 error: unsatisfied lifetime constraints
2 --> $DIR/ex3-both-anon-regions-both-are-structs-earlybound-regions.rs:18:5
4 LL | fn foo<'a, 'b>(mut x: Vec<Ref<'a>>, y: Ref<'b>)
5 | -- -- lifetime `'b` defined here
7 | lifetime `'a` defined here
9 LL | x.push(y); //~ ERROR lifetime mismatch
10 | ^^^^^^^^^ argument requires that `'b` must outlive `'a`
12 error: aborting due to previous error