message: Make all Hasher traits H:
  Summary: Everything else was consistent, so make this one consistent too.
diff: @@ -52,7 +52,7 @@ pub(crate) struct Bucket<K, V> {
  #[allow(clippy::derive_hash_xor_eq)]
  impl<K: Hash, V: Hash> Hash for Bucket<K, V> {
  - fn hash<S: Hasher>(&self, state: &mut S) {
  + fn hash<H: Hasher>(&self, state: &mut H) {
  self.hash.hash(state);
  // Ignore the key, because `hash` is already the hash of the key,
  // although maybe not as good hash as what is requested.
  