message: avoid a clone()
diff: @@ -683,8 +683,9 @@ impl Connection {
  c.scid = c.generate_cid();
  if c.rol == Role::Client {
  - c.dcid = c.generate_cid();
  - c.create_initial_crypto_state(&c.dcid.clone()); // Stupid borrow checker.
  + let dcid = c.generate_cid();
  + c.create_initial_crypto_state(&dcid);
  + c.dcid = dcid;
  }
  c
  