error[E0714]: marker traits cannot have associated items
  --> $DIR/specialization_marker.rs:7:5
   |
LL |     fn f();
   |     ^^^^^^^

error[E0714]: marker traits cannot have associated items
  --> $DIR/specialization_marker.rs:13:5
   |
LL |     type X;
   |     ^^^^^^^

error: aborting due to 2 previous errors

For more information about this error, try `rustc --explain E0714`.
