error: proc-macro derive panicked
 --> tests/ui/04-fail-repr-multiple-type.rs:5:10
  |
5 | #[derive(ConstEnum)]
  |          ^^^^^^^^^
  |
  = help: message: malformed repr attribute, expected single type

error[E0566]: conflicting representation hints
 --> tests/ui/04-fail-repr-multiple-type.rs:6:8
  |
6 | #[repr(u8, u8)]
  |        ^^  ^^
  |
  = note: `#[deny(conflicting_repr_hints)]` on by default
  = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
  = note: for more information, see issue #68585 <https://github.com/rust-lang/rust/issues/68585>