// revisions: ast mir //[mir]compile-flags: -Zborrowck=mir fn test() { let v: isize = 1; //[ast]~ NOTE first assignment //[mir]~^ NOTE first assignment //[mir]~| HELP make this binding mutable //[mir]~| SUGGESTION mut v v.clone(); v = 2; //[ast]~ ERROR cannot assign twice to immutable variable //[mir]~^ ERROR cannot assign twice to immutable variable `v` //[ast]~| NOTE cannot assign twice to immutable //[mir]~| NOTE cannot assign twice to immutable v.clone(); } fn main() { }