title: RxSwift - rx.tap not working
body: <p>I have view controller. Inside it I have view</p>
  
  <pre><code>lazy var statusView: StatusView = {
         var statusView = StatusView()
          return statusView
  }()
  </code></pre>
  
  <p>Inside statusView I have button</p>
  
  <pre><code>lazy var backButton: UIButton = {
          var button = UIButton(type: .system)
          button.titleLabel?.font = UIFont().regularFontOfSize(size: 20)
          return button
    }()
  </code></pre>
  
  <p>In controller I have</p>
  
  <pre><code>override func viewDidLoad() {
          super.viewDidLoad()
          setupRx()
  }
  
  func setupRx() {            
          _ = statusView.backButton.rx.tap.subscribe { [weak self] in
              guard let strongSelf = self else { return }
              print("hello")
          }
      }
  </code></pre>
  
  <p>But when I tap to button, nothing get printed to console.</p>
  
  <p>What am I doing wrong ?</p>