tests/ui/nll/polonius/subset-relations.stderr

   1 error: lifetime may not live long enough
   2   --> $DIR/subset-relations.rs:10:5
   3    |
   4 LL | fn missing_subset<'a, 'b>(x: &'a u32, y: &'b u32) -> &'a u32 {
   5    |                   --  -- lifetime `'b` defined here
   6    |                   |
   7    |                   lifetime `'a` defined here
   8 LL |     y
   9    |     ^ function was supposed to return data with lifetime `'a` but it is returning data with lifetime `'b`
  10    |
  11    = help: consider adding the following bound: `'b: 'a`
  12
  13 error: aborting due to previous error
  14