1 error[E0277]: `main` has invalid return type `ReturnType`
2 --> $DIR/termination-trait-not-satisfied.rs:3:14
4 LL | fn main() -> ReturnType {
5 | ^^^^^^^^^^ `main` can only return types that implement `Termination`
7 = help: consider using `()`, or a `Result`
9 error: aborting due to previous error
11 For more information about this error, try `rustc --explain E0277`.