2022-10-04 03:13:50 -05:00
|
|
|
error[E0308]: mismatched types
|
|
|
|
|
--> $DIR/issue-102605.rs:13:20
|
|
|
|
|
|
|
|
|
|
|
LL | convert_result(foo())
|
2023-01-02 20:00:33 -06:00
|
|
|
| -------------- ^^^^^ expected `Result<(), _>`, found opaque type
|
2022-10-04 03:13:50 -05:00
|
|
|
| |
|
|
|
|
|
| arguments to this function are incorrect
|
|
|
|
|
|
|
|
|
|
|
= note: expected enum `Result<(), _>`
|
|
|
|
|
found opaque type `impl Future<Output = Result<(), String>>`
|
|
|
|
|
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[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: aborting due to 2 previous errors
|
|
|
|
|
|
|
|
|
|
Some errors have detailed explanations: E0277, E0308.
|
|
|
|
|
For more information about an error, try `rustc --explain E0277`.
|
