error: to use a constant of type `NoDerive` in a pattern, `NoDerive` must be annotated with `#[derive(PartialEq, Eq)]` --> $DIR/cant-hide-behind-direct-struct-param.rs:22:9 | LL | WRAP_DIRECT_PARAM => { panic!("WRAP_DIRECT_PARAM matched itself"); } | ^^^^^^^^^^^^^^^^^ | = note: the traits must be derived, manual `impl`s are not sufficient = note: see https://doc.rust-lang.org/stable/std/marker/trait.StructuralEq.html for details error: aborting due to 1 previous error