|  | error[E0277]: the trait bound `String: Copy` is not satisfied | 
|  | --> $DIR/const-fn-in-vec.rs:1:47 | 
|  | | | 
|  | LL | static _MAYBE_STRINGS: [Option<String>; 5] = [None; 5]; | 
|  | |                                               ^^^^ the trait `Copy` is not implemented for `String` | 
|  | | | 
|  | = note: required for `Option<String>` to implement `Copy` | 
|  | = note: the `Copy` trait is required because this value will be copied for each element of the array | 
|  | help: create an inline `const` block | 
|  | | | 
|  | LL | static _MAYBE_STRINGS: [Option<String>; 5] = [const { None }; 5]; | 
|  | |                                               +++++++      + | 
|  |  | 
|  | error[E0277]: the trait bound `String: Copy` is not satisfied | 
|  | --> $DIR/const-fn-in-vec.rs:7:34 | 
|  | | | 
|  | LL |     let _strings: [String; 5] = [String::new(); 5]; | 
|  | |                                  ^^^^^^^^^^^^^ the trait `Copy` is not implemented for `String` | 
|  | | | 
|  | = note: the `Copy` trait is required because this value will be copied for each element of the array | 
|  | help: create an inline `const` block | 
|  | | | 
|  | LL |     let _strings: [String; 5] = [const { String::new() }; 5]; | 
|  | |                                  +++++++               + | 
|  |  | 
|  | error[E0277]: the trait bound `String: Copy` is not satisfied | 
|  | --> $DIR/const-fn-in-vec.rs:12:48 | 
|  | | | 
|  | LL |     let _maybe_strings: [Option<String>; 5] = [None; 5]; | 
|  | |                                                ^^^^ the trait `Copy` is not implemented for `String` | 
|  | | | 
|  | = note: required for `Option<String>` to implement `Copy` | 
|  | = note: the `Copy` trait is required because this value will be copied for each element of the array | 
|  | help: create an inline `const` block | 
|  | | | 
|  | LL |     let _maybe_strings: [Option<String>; 5] = [const { None }; 5]; | 
|  | |                                                +++++++      + | 
|  |  | 
|  | error: aborting due to 3 previous errors | 
|  |  | 
|  | For more information about this error, try `rustc --explain E0277`. |