static X: i32 = 1; const C: i32 = 2; const CR: &'static mut i32 = &mut C; //~ ERROR E0017 static STATIC_REF: &'static mut i32 = &mut X; //~ ERROR E0017 //~| ERROR cannot borrow //~| ERROR cannot mutate statics static CONST_REF: &'static mut i32 = &mut C; //~ ERROR E0017 fn main() {}