fn main() {
    println!("{:?}", {
        (|x: Fn()| {})(&||{})
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (file:///playground)
error[E0277]: the trait bound `std::ops::Fn() + 'static: std::marker::Sized` is not satisfied
 --> src/main.rs:5:11
  |
5 |         (|x: Fn()| {})(&||{})
  |           ^ `std::ops::Fn() + 'static` does not have a constant size known at compile-time
  |
  = help: the trait `std::marker::Sized` is not implemented for `std::ops::Fn() + 'static`
  = note: all local variables must have a statically known size

error[E0308]: mismatched types
 --> src/main.rs:5:24
  |
5 |         (|x: Fn()| {})(&||{})
  |                        ^^^^^ expected trait std::ops::Fn, found reference
  |
  = note: expected type `std::ops::Fn() + 'static`
             found type `&[closure@src/main.rs:5:25: 5:29]`

error[E0277]: the trait bound `std::ops::Fn() + 'static: std::marker::Sized` is not satisfied in `(std::ops::Fn() + 'static,)`
 --> src/main.rs:5:9
  |
5 |         (|x: Fn()| {})(&||{})
  |         ^^^^^^^^^^^^^^^^^^^^^ `std::ops::Fn() + 'static` does not have a constant size known at compile-time
  |
  = help: within `(std::ops::Fn() + 'static,)`, the trait `std::marker::Sized` is not implemented for `std::ops::Fn() + 'static`
  = note: required because it appears within the type `(std::ops::Fn() + 'static,)`

error: aborting due to 3 previous errors

Some errors occurred: E0277, E0308.
For more information about an error, try `rustc --explain E0277`.
error: Could not compile `playground`.

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

*/

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

*/