src/test/ui/consts/packed_pattern.stderr

   1 warning: unreachable pattern
   2   --> $DIR/packed_pattern.rs:16:9
   3    |
   4 LL |         FOO => unreachable!(),
   5    |         ^^^
   6    |
   7    = note: `#[warn(unreachable_patterns)]` on by default
   8
   9 warning: 1 warning emitted
  10