error[E0046]: not all trait items implemented, missing: `Ty`
  --> $DIR/issue-110161.rs:11:1
   |
LL |     type Ty;
   |     ------- `Ty` from trait
...
LL | impl LtTrait for () {
   | ^^^^^^^^^^^^^^^^^^^ missing `Ty` in implementation

error: aborting due to 1 previous error

For more information about this error, try `rustc --explain E0046`.