error[E0412]: cannot find type `B` in this scope
  --> $DIR/mir-build-2021-closure-capture-ice-110453-1.rs:12:18
   |
LL |     pub struct C(B);
   |                  ^ not found in this scope
   |
help: consider importing this struct
   |
LL +     use crate::B;
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0412`.