#![allow(unreachable_code)]


fn main() {
    println!("{:?}", {
        struct S; impl std::cmp::PartialEq<S> for usize { }
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (/playground)
error[E0046]: not all trait items implemented, missing: `eq`
 --> src/main.rs:6:19
  |
6 |         struct S; impl std::cmp::PartialEq<S> for usize { }
  |                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `eq` in implementation
  |
  = note: `eq` from trait: `fn(&Self, &Rhs) -> bool`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0046`.
error: Could not compile `playground`.

To learn more, run the command again with --verbose.

*/

/* ~~~~=== stdout ===~~~~

*/