fn main() {
    println!("{:?}", {
        Some(10).iter().zip(Some(1).iter()).map(|a, b| a + b).next()
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (file:///playground)
error[E0593]: closure is expected to take a single 2-tuple as argument, but it takes 2 distinct arguments
 --> src/main.rs:5:45
  |
5 |         Some(10).iter().zip(Some(1).iter()).map(|a, b| a + b).next()
  |                                             ^^^ ------ takes 2 distinct arguments
  |                                             |
  |                                             expected closure that takes a single 2-tuple as argument
help: change the closure to accept a tuple instead of individual arguments
  |
5 |         Some(10).iter().zip(Some(1).iter()).map(|(a, b)| a + b).next()
  |                                                 ^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0593`.
error: Could not compile `playground`.

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

*/

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

*/