title: uninitialized constant Sidekiq::Actor::Celluloid (NameError) + Cucumber
body: <p>I am getting <code>uninitialized constant Sidekiq::Actor::Celluloid (NameError)</code> while trying to run cucumber test. This happens after upgrading to version 2.12.0.</p>
  
  <pre><code>Rails 3.0.20
  Ruby 1.9.3-p194
  </code></pre>
  
  <p>This was causing due to the sidekiq-failure gem. Inorder to resolve it I have to upgrade sidekiq-failure or remove it.</p>