| error: lifetime may not live long enough |
| --> $DIR/ex3-both-anon-regions-both-are-structs-earlybound-regions.rs:9:5 |
| | |
| LL | fn foo<'a, 'b>(mut x: Vec<Ref<'a>>, y: Ref<'b>) |
| | -- -- lifetime `'b` defined here |
| | | |
| | lifetime `'a` defined here |
| ... |
| LL | x.push(y); |
| | ^^^^^^^^^ argument requires that `'b` must outlive `'a` |
| | |
| = help: consider adding the following bound: `'b: 'a` |
| = note: requirement occurs because of a mutable reference to `Vec<Ref<'_>>` |
| = note: mutable references are invariant over their type parameter |
| = help: see <https://doc.rust-lang.org/nomicon/subtyping.html> for more information about variance |
| |
| error: aborting due to 1 previous error |
| |
