src/test/ui/unboxed-closures/unboxed-closures-failed-recursive-fn-2.stderr

error[E0282]: type annotations needed
  --> $DIR/unboxed-closures-failed-recursive-fn-2.rs:26:32
   |
LL |     let mut closure0 = None;
   |         ------------ consider giving `closure0` a type
...
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`.