error: `yield` can only be used in `#[coroutine]` closures, or `gen` blocks --> $DIR/issue-64620-yield-array-element.rs:6:5 | LL | yield arr[0]; | ^^^^^^^^^^^^ | help: use `#[coroutine]` to make this closure a coroutine | LL | #[coroutine] pub fn crash(arr: [usize; 1]) { | ++++++++++++ error[E0627]: yield expression outside of coroutine literal --> $DIR/issue-64620-yield-array-element.rs:6:5 | LL | yield arr[0]; | ^^^^^^^^^^^^ error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0627`.