src/test/ui/rfc1445/match-nonempty-array-forbidden-without-eq.stderr

   1 error: to use a constant of type `B` in a pattern, `B` must be annotated with `#[derive(PartialEq, Eq)]`
   2   --> $DIR/match-nonempty-array-forbidden-without-eq.rs:16:9
   3    |
   4 LL |         FOO => { }
   5    |         ^^^
   6
   7 error: aborting due to previous error
   8