struct S {
  v: i32
}

fn main()
{
  let mut val = S{v: 666};
  let r1;
  let r2;
  {
    let mut r3 = &mut val;

    println!("{}", r3.v);
    r3.v = 0;
    println!("{}", r3.v)
  }
  r1   = &val;
  r2   = &val;

  println!("{} {}", r1.v, r2.v)
}