error[E0277]: the trait bound `Header<'_>: Copy` is not satisfied --> $DIR/repeat_empty_ok.rs:8:20 | LL | let headers = [Header{value: &[]}; 128]; | ^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `Header<'_>` | = note: the `Copy` trait is required because this value will be copied for each element of the array = help: consider using `core::array::from_fn` to initialize the array = help: see https://doc.rust-lang.org/stable/std/array/fn.from_fn.html for more information help: consider annotating `Header<'_>` with `#[derive(Copy)]` | LL + #[derive(Copy)] LL | pub struct Header<'a> { | error[E0277]: the trait bound `Header<'_>: Copy` is not satisfied --> $DIR/repeat_empty_ok.rs:13:20 | LL | let headers = [Header{value: &[0]}; 128]; | ^^^^^^^^^^^^^^^^^^^ the trait `Copy` is not implemented for `Header<'_>` | = note: the `Copy` trait is required because this value will be copied for each element of the array = help: consider using `core::array::from_fn` to initialize the array = help: see https://doc.rust-lang.org/stable/std/array/fn.from_fn.html for more information help: consider annotating `Header<'_>` with `#[derive(Copy)]` | LL + #[derive(Copy)] LL | pub struct Header<'a> { | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0277`.