error: this creates an owned instance just for comparison
  --> $DIR/without_suggestion.rs:6:5
   |
LL |     y.to_owned() == *x;
   |     ^^^^^^^^^^^^^^^^^^ try implementing the comparison without allocating
   |
   = note: `-D clippy::cmp-owned` implied by `-D warnings`

error: this creates an owned instance just for comparison
  --> $DIR/without_suggestion.rs:10:5
   |
LL |     y.to_owned() == **x;
   |     ^^^^^^^^^^^^^^^^^^^ try implementing the comparison without allocating

error: this creates an owned instance just for comparison
  --> $DIR/without_suggestion.rs:17:9
   |
LL |         self.to_owned() == *other
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^ try implementing the comparison without allocating

error: aborting due to 3 previous errors