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error[E0282]: type annotations needed
--> $DIR/unknown_type_for_closure.rs:2:13
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LL | let x = |b: Vec<_>| {};
| ^^^^^^^^^^^^^^ cannot infer type for struct `Vec<_>`
error[E0282]: type annotations needed
--> $DIR/unknown_type_for_closure.rs:6:14
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LL | let x = |_| {};
| ^
|
help: consider giving this closure parameter an explicit type
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LL | let x = |_: _| {};
| +++
error[E0282]: type annotations needed
--> $DIR/unknown_type_for_closure.rs:10:14
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LL | let x = |k: _| {};
| ^ cannot infer type
error[E0282]: type annotations needed
--> $DIR/unknown_type_for_closure.rs:14:28
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LL | let x = || -> Vec<_> { Vec::new() };
| ^^^^^^^^ cannot infer type of the type parameter `T` declared on the struct `Vec`
|
help: consider specifying the generic argument
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LL | let x = || -> Vec<_> { Vec::<T>::new() };
| +++++
error: aborting due to 4 previous errors
For more information about this error, try `rustc --explain E0282`.
|