| error[E0277]: `main` has invalid return type `Option<()>` |
| --> $DIR/issue-102605.rs:11:14 |
| | |
| LL | fn main() -> Option<()> { |
| | ^^^^^^^^^^ `main` can only return types that implement `Termination` |
| | |
| = help: consider using `()`, or a `Result` |
| |
| error[E0308]: mismatched types |
| --> $DIR/issue-102605.rs:13:20 |
| | |
| LL | convert_result(foo()) |
| | -------------- ^^^^^ expected `Result<(), _>`, found future |
| | | |
| | arguments to this function are incorrect |
| | |
| note: calling an async function returns a future |
| --> $DIR/issue-102605.rs:13:20 |
| | |
| LL | convert_result(foo()) |
| | ^^^^^ |
| note: function defined here |
| --> $DIR/issue-102605.rs:7:4 |
| | |
| LL | fn convert_result<T, E>(r: Result<T, E>) -> Option<T> { |
| | ^^^^^^^^^^^^^^ --------------- |
| help: consider `await`ing on the `Future` |
| | |
| LL | convert_result(foo().await) |
| | ++++++ |
| help: try wrapping the expression in `Err` |
| | |
| LL | convert_result(Err(foo())) |
| | ++++ + |
| |
| error: aborting due to 2 previous errors |
| |
| Some errors have detailed explanations: E0277, E0308. |
| For more information about an error, try `rustc --explain E0277`. |
