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error[E0282]: type annotations needed for `Result<(), E>`
--> $DIR/cannot-infer-closure-circular.rs:7:14
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LL | let x = |r| {
| ^
LL | let v = r?;
LL | Ok(v)
| ----- type must be known at this point
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help: consider giving this closure parameter an explicit type, where the type for type parameter `E` is specified
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LL | let x = |r: Result<(), E>| {
| +++++++++++++++
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0282`.
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