message: Casting saves the day
diff: @@ -474,12 +474,11 @@ impl Server {
  saved_cids: Vec::new(),
  }));
  - let cid_mgr_dyn = Rc::clone(&cid_mgr); // Temporary for tricking type coercion.
  let sconn = Connection::new_server(
  &self.certs,
  &self.protocols,
  &self.anti_replay,
  - cid_mgr_dyn,
  + Rc::clone(&cid_mgr) as _,
  initial.quic_version,
  );
  