1 error[E0621]: explicit lifetime required in the type of `y`
2 --> $DIR/mismatched.rs:4:42
4 LL | fn foo(x: &'a u32, y: &u32) -> &'a u32 { y }
5 | ---- ^ lifetime `'a` required
7 | help: add explicit lifetime `'a` to the type of `y`: `&'a u32`
9 error: lifetime may not live long enough
10 --> $DIR/mismatched.rs:6:46
12 LL | fn foo2(x: &'a u32, y: &'b u32) -> &'a u32 { y }
13 | -- -- ^ function was supposed to return data with lifetime `'a` but it is returning data with lifetime `'b`
15 | | lifetime `'b` defined here
16 | lifetime `'a` defined here
18 = help: consider adding the following bound: `'b: 'a`
20 error: aborting due to 2 previous errors
22 For more information about this error, try `rustc --explain E0621`.