error: enum with no variants --> empty_enum.rs:7:1 | 7 | enum Empty {} | ^^^^^^^^^^^^^ | = note: `-D empty-enum` implied by `-D warnings` help: consider using the uninhabited type `!` or a wrapper around it --> empty_enum.rs:7:1 | 7 | enum Empty {} | ^^^^^^^^^^^^^ error: aborting due to previous error(s) error: Could not compile `clippy_tests`. To learn more, run the command again with --verbose.