error: Unfortunately, macro can't get full path to referenced parent trait, so it must be be given using 'refs' parameter:

           #[mocked]
           trait A {}

           #[mocked(refs = "A => ::full::path::to::A")]
           trait B : A {}

 --> $DIR/parent_ref.rs:6:11
  |
6 | trait B : A {}
  |           ^