| error[E0282]: type annotations needed | |
| --> $DIR/cannot-infer-closure.rs:4:9 | |
| | | |
| LL | Ok(b) | |
| | ^^ cannot infer type of the type parameter `E` declared on the enum `Result` | |
| | | |
| help: consider specifying the generic arguments | |
| | | |
| LL | Ok::<(), E>(b) | |
| | +++++++++ | |
| error: aborting due to previous error | |
| For more information about this error, try `rustc --explain E0282`. |