#![allow(unreachable_code)]


fn main() {
    println!("{:?}", {
        let mut x = Some(1); match x { Some(ref y) => x = None, _ => () }; x
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (file:///playground)
warning: unused variable: `y`
 --> src/main.rs:6:49
  |
6 |         let mut x = Some(1); match x { Some(ref y) => x = None, _ => () }; x
  |                                                 ^ help: consider using `_y` instead
  |
  = note: #[warn(unused_variables)] on by default

error[E0506]: cannot assign to `x` because it is borrowed
 --> src/main.rs:6:55
  |
6 |         let mut x = Some(1); match x { Some(ref y) => x = None, _ => () }; x
  |                                             -----     ^^^^^^^^ assignment to borrowed `x` occurs here
  |                                             |
  |                                             borrow of `x` occurs here

error: aborting due to previous error

For more information about this error, try `rustc --explain E0506`.
error: Could not compile `playground`.

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

*/

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

*/