1 error: unsatisfied lifetime constraints
2 --> $DIR/ex3-both-anon-regions-both-are-structs.rs:15:5
4 LL | fn foo(mut x: Vec<Ref>, y: Ref) {
5 | ----- - has type `Ref<'1>`
7 | has type `std::vec::Vec<Ref<'2>>`
8 LL | x.push(y); //~ ERROR lifetime mismatch
9 | ^^^^^^^^^ argument requires that `'1` must outlive `'2`
11 error: aborting due to previous error