error: this creates an owned instance just for comparison --> 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 --> cmp_owned.rs:10:9 | 10 | "foo".to_string() != x; | ^^^^^^^^^^^^^^^^^ help: try `"foo"` | = note: `-D cmp-owned` implied by `-D warnings` error: this creates an owned instance just for comparison --> cmp_owned.rs:17:10 | 17 | x != "foo".to_owned(); | ^^^^^^^^^^^^^^^^ help: try `"foo"` | = note: `-D cmp-owned` implied by `-D warnings` error: this creates an owned instance just for comparison --> cmp_owned.rs:19:10 | 19 | x != String::from("foo"); | ^^^^^^^^^^^^^^^^^^^ help: try `"foo"` | = note: `-D cmp-owned` implied by `-D warnings` error: this creates an owned instance just for comparison --> cmp_owned.rs:23:5 | 23 | Foo.to_owned() == Foo; | ^^^^^^^^^^^^^^ help: try `Foo` | = note: `-D cmp-owned` implied by `-D warnings` error: this creates an owned instance just for comparison --> cmp_owned.rs:30:9 | 30 | self.to_owned() == *other | ^^^^^^^^^^^^^^^ try calling implementing the comparison without allocating | = note: `-D cmp-owned` implied by `-D warnings` error: aborting due to previous error(s) To learn more, run the command again with --verbose.