LL | #[derive(Empty)]
| ----- the attribute is introduced here
|
- = note: `#[warn(legacy_derive_helpers)]` on by default
= warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
= note: for more information, see issue #79202 <https://github.com/rust-lang/rust/issues/79202>
+ = note: `#[warn(legacy_derive_helpers)]` on by default
error: aborting due to 5 previous errors; 1 warning emitted