message: Odd formatting disagreement
diff: @@ -720,14 +720,20 @@ mod tests {
  #[test]
  fn drop_spaces() {
  let mut tracker = AckTracker::default();
  - tracker.get_mut(PNSpace::Initial).unwrap().set_received(*NOW, 0, true);
  + tracker
  + .get_mut(PNSpace::Initial)
  + .unwrap()
  + .set_received(*NOW, 0, true);
  // The reference time for `ack_time` has to be in the past or we filter out the timer.
  assert!(tracker.ack_time(*NOW - Duration::from_millis(1)).is_some());
  let (_ack, token) = tracker.get_frame(*NOW, PNSpace::Initial).unwrap();
  assert!(token.is_some());
  // Mark another packet as received so we have cause to send another ACK in that space.
  - tracker.get_mut(PNSpace::Initial).unwrap().set_received(*NOW, 1, true);
  + tracker
  + .get_mut(PNSpace::Initial)
  + .unwrap()
  + .set_received(*NOW, 1, true);
  assert!(tracker.ack_time(*NOW - Duration::from_millis(1)).is_some());
  // Now drop that space.
  @@ -749,7 +755,10 @@ mod tests {
  // While we have multiple PN spaces, we ignore ACK timers from the past.
  // Send out of order to cause the delayed ack timer to be set to `*NOW`.
  - tracker.get_mut(PNSpace::ApplicationData).unwrap().set_received(*NOW, 3, true);
  + tracker
  + .get_mut(PNSpace::ApplicationData)
  + .unwrap()
  + .set_received(*NOW, 3, true);
  assert!(tracker.ack_time(*NOW + Duration::from_millis(1)).is_none());
  // When we are reduced to one space, that filter is off.
  