fn main() {
    println!("{:?}", {
        fn foo() -> impl Fn() { || () }\
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (file:///playground)
error: unknown start of token: \
 --> src/main.rs:5:40
  |
5 |         fn foo() -> impl Fn() { || () }\
  |                                        ^

error: Could not compile `playground`.

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

*/

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

*/