error[E0277]: `MyError` doesn't implement `std::fmt::Display`
--> $DIR/missing-display.rs:4:1
|
4 | pub enum MyError {
| ^^^^^^^^^^^^^^^^ `MyError` cannot be formatted with the default formatter
|
= help: the trait `std::fmt::Display` is not implemented for `MyError`
= note: in format strings you may be able to use `{:?}` (or {:#?} for pretty-print) instead