1 error[E0478]: lifetime bound not satisfied
2 --> $DIR/issue-28848.rs:22:5
4 LL | Foo::<'a, 'b>::xmute(u) //~ ERROR lifetime bound not satisfied
7 note: lifetime parameter instantiated with the lifetime 'b as defined on the function body at 21:16
8 --> $DIR/issue-28848.rs:21:16
10 LL | pub fn foo<'a, 'b>(u: &'b ()) -> &'a () {
12 note: but lifetime parameter must outlive the lifetime 'a as defined on the function body at 21:12
13 --> $DIR/issue-28848.rs:21:12
15 LL | pub fn foo<'a, 'b>(u: &'b ()) -> &'a () {
18 error: aborting due to previous error
20 For more information about this error, try `rustc --explain E0478`.