1 error[E0207]: the lifetime parameter `'a` is not constrained by the impl trait, self type, or predicates
2 --> $DIR/issue-74761.rs:8:6
4 LL | impl<'a, 'b> A for () {
5 | ^^ unconstrained lifetime parameter
7 error[E0207]: the lifetime parameter `'b` is not constrained by the impl trait, self type, or predicates
8 --> $DIR/issue-74761.rs:8:10
10 LL | impl<'a, 'b> A for () {
11 | ^^ unconstrained lifetime parameter
13 error: aborting due to 2 previous errors
15 For more information about this error, try `rustc --explain E0207`.