message: Make sure to initialize the fixture
  Not sure why this didn't happen before now.
  See
diff: @@ -357,6 +357,7 @@ fn reject_zero_rtt() {
  #[test]
  fn close() {
  + fixture_init();
  let mut client = Client::new("server.example").expect("should create client");
  let mut server = Server::new(&["key"]).expect("should create server");
  connect(&mut client, &mut server);
  @@ -366,6 +367,7 @@ fn close() {
  #[test]
  fn close_client_twice() {
  + fixture_init();
  let mut client = Client::new("server.example").expect("should create client");
  let mut server = Server::new(&["key"]).expect("should create server");
  connect(&mut client, &mut server);
  