Compilare: warning: variable does not need to be mutable --> main.rs:31:13 | 31 | let mut a: i32 = nums.next().unwrap().parse().unwrap(); | ----^ | | | help: remove this `mut` | = note: `#[warn(unused_mut)]` on by default warning: variable does not need to be mutable --> main.rs:32:13 | 32 | let mut b: i32 = nums.next().unwrap().parse().unwrap(); | ----^ | | | help: remove this `mut` warning: 2 warnings emitted