src/test/ui/match/match-ref-mut-let-invariance.stderr

   1 error[E0308]: mismatched types
   2   --> $DIR/match-ref-mut-let-invariance.rs:11:9
   3    |
   4 LL |         x //~ ERROR mismatched types
   5    |         ^ lifetime mismatch
   6    |
   7    = note: expected type `&'a mut &'a i32`
   8               found type `&'a mut &'b i32`
   9 note: the lifetime 'a as defined on the method body at 9:12...
  10   --> $DIR/match-ref-mut-let-invariance.rs:9:12
  11    |
  12 LL |     fn bar<'a>(&'a mut self) -> &'a mut &'a i32 {
  13    |            ^^
  14 note: ...does not necessarily outlive the lifetime 'b as defined on the impl at 8:6
  15   --> $DIR/match-ref-mut-let-invariance.rs:8:6
  16    |
  17 LL | impl<'b> S<'b> {
  18    |      ^^
  19
  20 error: aborting due to previous error
  21
  22 For more information about this error, try `rustc --explain E0308`.