error: this creates an owned instance just for comparison
 --> $DIR/cmp_owned.rs:8:14
  |
8 |         x != "foo".to_string();
  |              ^^^^^^^^^^^^^^^^^ help: try: `"foo"`
  |
  = note: `-D cmp-owned` implied by `-D warnings`

error: this creates an owned instance just for comparison
  --> $DIR/cmp_owned.rs:10:9
   |
10 |         "foo".to_string() != x;
   |         ^^^^^^^^^^^^^^^^^ help: try: `"foo"`

error: this creates an owned instance just for comparison
  --> $DIR/cmp_owned.rs:17:10
   |
17 |     x != "foo".to_owned();
   |          ^^^^^^^^^^^^^^^^ help: try: `"foo"`

error: this creates an owned instance just for comparison
  --> $DIR/cmp_owned.rs:19:10
   |
19 |     x != String::from("foo");
   |          ^^^^^^^^^^^^^^^^^^^ help: try: `"foo"`

error: this creates an owned instance just for comparison
  --> $DIR/cmp_owned.rs:23:5
   |
23 |     Foo.to_owned() == Foo;
   |     ^^^^^^^^^^^^^^ help: try: `Foo`

error: this creates an owned instance just for comparison
  --> $DIR/cmp_owned.rs:30:9
   |
30 |         self.to_owned() == *other
   |         ^^^^^^^^^^^^^^^ try calling implementing the comparison without allocating

error: aborting due to 6 previous errors