fn main() {
    println!("{:?}", {
        let x = Some(2); let y = Some(3); let z = (||{ Some(x? + y?) }(); z
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (file:///playground)
error: incorrect close delimiter: `}`
 --> src/main.rs:6:5
  |
6 |     });
  |     ^
  |
note: unclosed delimiter
 --> src/main.rs:5:51
  |
5 |         let x = Some(2); let y = Some(3); let z = (||{ Some(x? + y?) }(); z
  |                                                   ^

error: expected one of `)`, `,`, `.`, `?`, or an operator, found `;`
 --> src/main.rs:5:73
  |
5 |         let x = Some(2); let y = Some(3); let z = (||{ Some(x? + y?) }(); z
  |                                                                         ^ expected one of `)`, `,`, `.`, `?`, or an operator here

error: aborting due to 2 previous errors

error: Could not compile `playground`.

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

*/

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

*/