1 error[E0263]: lifetime name `'a` declared twice in the same scope
4 LL | fn foo<'a, 'b, 'a>(x: &'a str, y: &'b str) {
5 | -- ^^ lifetime `'a` already in scope
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0263`.