error: encountered duplicate `#[skip(setters)]` attribute for field --> $DIR/duplicate-setters-1.rs:5:24 | 5 | #[skip(setters)] #[skip(setters)] | ^^^^ error: duplicate `#[skip(setters)]` here --> $DIR/duplicate-setters-1.rs:5:7 | 5 | #[skip(setters)] #[skip(setters)] | ^^^^