error: enum with no variants --> $DIR/empty_enum.rs:4:1 | LL | enum Empty {} | ^^^^^^^^^^^^^ | = note: `-D clippy::empty-enum` implied by `-D warnings` help: consider using the uninhabited type `!` (never type) or a wrapper around it to introduce a type which can't be instantiated --> $DIR/empty_enum.rs:4:1 | LL | enum Empty {} | ^^^^^^^^^^^^^ error: aborting due to previous error