1 A lifetime name is shadowing another lifetime name.
3 Erroneous code example:
11 fn f<'a>(x: &'a i32) { // error: lifetime name `'a` shadows a lifetime
12 // name that is already in scope
17 Please change the name of one of the lifetimes to remove this error. Example:
25 fn f<'b>(x: &'b i32) { // ok!