error[E0774]: `derive` may only be applied to structs, enums and unions --> $DIR/derive-on-trait-item-or-impl-item.rs:2:5 | LL | #[derive(Clone)] | ^^^^^^^^^^^^^^^^ error[E0774]: `derive` may only be applied to structs, enums and unions --> $DIR/derive-on-trait-item-or-impl-item.rs:10:5 | LL | #[derive(Clone)] | ^^^^^^^^^^^^^^^^ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0774`.