error[E0005]: refutable pattern in local binding: `Err(_)` not covered | |
--> $DIR/recursive-types-are-not-uninhabited.rs:16:9 | |
| | |
LL | let Ok(x) = res; | |
| ^^^^^ pattern `Err(_)` not covered | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0005`. |