error: `derive` may only be applied to structs, enums and unions | |
--> $DIR/issue-36617.rs:1:1 | |
| | |
LL | #![derive(Copy)] | |
| ^^^^^^^^^^^^^^^^ help: try an outer attribute: `#[derive(Copy)]` | |
error: cannot determine resolution for the derive macro `Copy` | |
--> $DIR/issue-36617.rs:1:11 | |
| | |
LL | #![derive(Copy)] | |
| ^^^^ | |
| | |
= note: import resolution is stuck, try simplifying macro imports | |
error: aborting due to 2 previous errors | |