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error[E0308]: `if` and `else` have incompatible types
--> $DIR/if-else-chain-missing-else.rs:12:12
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LL | let x = if let Ok(x) = res {
| ------------------ `if` and `else` have incompatible types
LL | x
| - expected because of this
LL | } else if let Err(e) = res {
| ____________^
LL | | return Err(e);
LL | | };
| |_____^ expected `i32`, found `()`
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= note: `if` expressions without `else` evaluate to `()`
= note: consider adding an `else` block that evaluates to the expected type
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0308`.
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