error: lifetime may not live long enough --> $DIR/where_clauses_in_functions.rs:11:5 | LL | fn bar<'a, 'b>(x: &'a u32, y: &'b u32) -> (&'a u32, &'b u32) { | -- -- lifetime `'b` defined here | | | lifetime `'a` defined here LL | foo(x, y) | ^^^^^^^^^ function was supposed to return data with lifetime `'b` but it is returning data with lifetime `'a` | = help: consider adding the following bound: `'a: 'b` error: aborting due to 1 previous error