message: Fix remaining clippy warnings
diff: @@ -94,7 +94,6 @@ where
  .choose_multiple(&mut rng, SAMPLE_SIZE)
  .into_iter()
  .map(|(k, v)| k.estimate_heap_size() + v.estimate_heap_size())
  - .map(|v| v)
  .sum();
  base_size + scale_sample(map.len(), sampled)
  @@ -102,6 +101,7 @@ where
  }
  #[cfg(test)]
  +#[allow(clippy::assertions_on_constants)] // used by sanity checks around `SAMPLE_SIZE`
  mod tests {
  use std::collections::HashMap;
  