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error[E0277]: `?` couldn't convert the error to `TryFromSliceError`
--> $DIR/try-block-bad-type.rs:7:16
|
LL | Err("")?;
| -------^ the trait `From<&str>` is not implemented for `TryFromSliceError`
| |
| this can't be annotated with `?` because it has type `Result<_, &str>`
|
= note: the question mark operation (`?`) implicitly performs a conversion on the error value using the `From` trait
= help: the trait `From<&str>` is not implemented for `TryFromSliceError`
but trait `From<Infallible>` is implemented for it
= help: for that trait implementation, expected `Infallible`, found `&str`
= note: required for `Result<u32, TryFromSliceError>` to implement `FromResidual<Result<Infallible, &str>>`
error[E0271]: type mismatch resolving `<Result<i32, i32> as Try>::Output == &str`
--> $DIR/try-block-bad-type.rs:12:9
|
LL | ""
| ^^ expected `&str`, found `i32`
error[E0271]: type mismatch resolving `<Result<i32, i32> as Try>::Output == ()`
--> $DIR/try-block-bad-type.rs:15:39
|
LL | let res: Result<i32, i32> = try { };
| ^ expected `()`, found `i32`
error[E0277]: a `try` block must return `Result` or `Option` (or another type that implements `Try`)
--> $DIR/try-block-bad-type.rs:17:25
|
LL | let res: () = try { };
| ^ could not wrap the final value of the block as `()` doesn't implement `Try`
|
= help: the trait `Try` is not implemented for `()`
error[E0277]: a `try` block must return `Result` or `Option` (or another type that implements `Try`)
--> $DIR/try-block-bad-type.rs:20:26
|
LL | let res: i32 = try { 5 };
| ^ could not wrap the final value of the block as `i32` doesn't implement `Try`
|
= help: the trait `Try` is not implemented for `i32`
error: aborting due to 5 previous errors
Some errors have detailed explanations: E0271, E0277.
For more information about an error, try `rustc --explain E0271`.
|
