message: Update utils/indexmap clippy clean
diff: @@ -29,8 +29,19 @@ impl<K: Hash + Eq, V> IndexMap<K, V> {
  pub fn len(&self) -> usize {
  self.0.len()
  }
  +}
  +
  +impl<K: Hash + Eq, V> Default for IndexMap<K, V> {
  + fn default() -> Self {
  + Self::new()
  + }
  +}
  +
  +impl<K: Hash + Eq, V> IntoIterator for IndexMap<K, V> {
  + type Item = (K, V);
  + type IntoIter = IntoIter<K, V>;
  - pub fn into_iter(self) -> IntoIter<K, V> {
  + fn into_iter(self) -> Self::IntoIter {
  self.0.into_iter()
  }
  }
  