| error[E0204]: the trait `Copy` may not be implemented for this type | |
| --> $DIR/range_traits-3.rs:13:10 | |
| | | |
| LL | #[derive(Copy, Clone)] //~ ERROR Copy | |
| | ^^^^ | |
| LL | struct R(RangeFrom<usize>); | |
| | ---------------- this field does not implement `Copy` | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0204`. |