error[E0282]: type annotations needed for `std::option::Option<T>` | |
--> $DIR/unboxed-closures-failed-recursive-fn-2.rs:16:32 | |
| | |
LL | let mut closure0 = None; | |
| ------------ consider giving `closure0` the explicit type `std::option::Option<T>`, with the type parameters specified | |
... | |
LL | return c(); | |
| ^^^ cannot infer type | |
| | |
= note: type must be known at this point | |
error: aborting due to previous error | |
For more information about this error, try `rustc --explain E0282`. |