rust/tests/ui/transmute/ambiguity-in-closure-arg.st...

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error[E0282]: type annotations needed
--> $DIR/ambiguity-in-closure-arg.rs:6:44
|
LL | unsafe { std::mem::transmute::<_, ()>(|o_b: Unconstrained<_>| {}) };
| ^^^^^^^^^^^^^^^^^^^^^ cannot infer type
error: aborting due to 1 previous error
For more information about this error, try `rustc --explain E0282`.