src/test/ui/regions/regions-infer-invariance-due-to-mutability-4.nll.stderr

   1 error: unsatisfied lifetime constraints
   2   --> $DIR/regions-infer-invariance-due-to-mutability-4.rs:21:5
   3    |
   4 LL | fn to_longer_lifetime<'r>(b_isize: Invariant<'r>) -> Invariant<'static> {
   5    |                       -- lifetime `'r` defined here
   6 LL |     b_isize //~ ERROR mismatched types
   7    |     ^^^^^^^ returning this value requires that `'r` must outlive `'static`
   8
   9 error: aborting due to previous error
  10