fn main() {
    println!("{:?}", {
        let _: Option<(usize, i32)> = vec![].iter().enumerate().next();
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (file:///playground)
error[E0308]: mismatched types
 --> src/main.rs:5:39
  |
5 |         let _: Option<(usize, i32)> = vec![].iter().enumerate().next();
  |                                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected i32, found reference
  |
  = note: expected type `std::option::Option<(usize, i32)>`
             found type `std::option::Option<(usize, &_)>`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0308`.
error: Could not compile `playground`.

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

*/

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

*/