tests/ui/rfc-1445-restrict-constants-in-patterns/issue-61188-match-slice-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/issue-61188-match-slice-forbidden-without-eq.rs:15:9
   3    |
   4 LL |         A => (),
   5    |         ^
   6    |
   7    = note: the traits must be derived, manual `impl`s are not sufficient
   8    = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details
   9
  10 error: aborting due to previous error
  11