struct dog { let mut cats_chased: uint; new() { self.cats_chased = 0u; } fn chase_cat() { let p: &static/mut uint = &mut self.cats_chased; //~ ERROR illegal borrow *p += 1u; } fn chase_cat_2() { let p: &blk/mut uint = &mut self.cats_chased; *p += 1u; } } fn main() { let d = dog(); d.chase_cat(); debug!("cats_chased: %u", d.cats_chased); }