warning: methods `get_from_ref` and `inc` are never used
  --> $DIR/overloaded-index-in-field.rs:30:8
   |
LL | trait Int {
   |       --- methods in this trait
LL |     fn get(self) -> isize;
LL |     fn get_from_ref(&self) -> isize;
   |        ^^^^^^^^^^^^
LL |     fn inc(&mut self);
   |        ^^^
   |
   = note: `#[warn(dead_code)]` on by default

warning: 1 warning emitted