title: Ansible error using `win_copy`: "Unexpected failure during module execution"
body: <p>I upgraded to Python 3.5 and Ansible deployment started failing, not sure if they are related, but here is the info:</p>
  
  <blockquote>
    <p>Ansible version: 2.3.2</p>
  </blockquote>
  
  <p><code>yaml</code> file:</p>
  
  <pre><code>  - name: Collect compiled DLLs for publishing
      win_copy:
        src: '{{ download_dir }}/tmp/xxxx/bin/Release/PublishOutput/bin/'
        dest: '{{ work_dir }}\bin'
  </code></pre>
  
  <p>Error:</p>
  
  <pre><code>{
    "failed": true,
    "msg": "Unexpected failure during module execution.",
    "stdout": ""
  }
  </code></pre>