1 error[E0106]: missing lifetime specifier
2 --> $DIR/issue-19707.rs:13:28
4 LL | type foo = fn(&u8, &u8) -> &u8; //~ ERROR missing lifetime specifier
5 | ^ expected lifetime parameter
7 = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2
9 error[E0106]: missing lifetime specifier
10 --> $DIR/issue-19707.rs:15:27
12 LL | fn bar<F: Fn(&u8, &u8) -> &u8>(f: &F) {} //~ ERROR missing lifetime specifier
13 | ^ expected lifetime parameter
15 = help: this function's return type contains a borrowed value, but the signature does not say whether it is borrowed from argument 1 or argument 2
17 error: aborting due to 2 previous errors
19 For more information about this error, try `rustc --explain E0106`.