File: ex2a-push-one-existing-name-2.stderr

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error[E0621]: explicit lifetime required in the type of `x`
  --> $DIR/ex2a-push-one-existing-name-2.rs:6:5
   |
LL | fn foo<'a>(x: Ref<i32>, y: &mut Vec<Ref<'a, i32>>) {
   |               -------- help: add explicit lifetime `'a` to the type of `x`: `Ref<'a, i32>`
LL |     y.push(x);
   |     ^^^^^^^^^ lifetime `'a` required

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0621`.