const ONE: usize = 1;
const TWO: usize = 2;
const LEN: usize = ONE - TWO;
-//~^ ERROR array length constant evaluation error: attempted to sub with overflow [E0250]
+//~^ ERROR array length constant evaluation error: attempted to subtract with overflow [E0250]
fn main() {
let a: [i8; LEN] = unimplemented!();