error[E0599]: no method named `the_fn` found for reference `&TheStruct` in the current scope
  --> $DIR/coherence_inherent.rs:31:11
   |
LL |         s.the_fn();
   |           ^^^^^^ method not found in `&TheStruct`
   |
   = help: items from traits can only be used if the trait is in scope
help: the following trait is implemented but not in scope; perhaps add a `use` for it:
   |
LL +     use Lib::TheTrait;
   |

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0599`.