message: Use new 1.62 stable feature
diff: @@ -171,21 +171,16 @@ where
  T::from(vars.get(&args[index]))
  }
  -#[derive(Debug, Clone)]
  +#[derive(Debug, Default, Clone)]
  enum Value {
  Int(i64),
  Bool(bool),
  Float(f64),
  Pointer(Pointer),
  + #[default]
  Uninitialized,
  }
  -impl Default for Value {
  - fn default() -> Self {
  - Self::Uninitialized
  - }
  -}
  -
  #[derive(Debug, Clone, PartialEq)]
  struct Pointer {
  base: usize,
  