error[E0425]: cannot find value `ExOne` in this scope
  --> $DIR/issue-116164.rs:17:5
   |
LL |     ExOne;
   |     ^^^^^ not found in this scope
   |
help: consider importing this unit variant
   |
LL + use inner::Example::ExOne;
   |

error: aborting due to previous error

For more information about this error, try `rustc --explain E0425`.