title: `docker-compose up` times out with UnixHTTPConnectionPool
body: <p>In our Jenkins agents we are running about several (around 20) tests whose setup involves running <code>docker-compose up</code> for a "big" number of services/containers (around 14).</p>
  
  <p>From time to time, I'll get the following error:</p>
  
  <pre><code>ERROR: for testdb-data  UnixHTTPConnectionPool(host='localhost', port=None): Read timed out. (read timeout=60)
  An HTTP request took too long to complete. Retry with --verbose to obtain debug information.
  If you encounter this issue regularly because of slow network conditions, consider setting COMPOSE_HTTP_TIMEOUT to a higher value (current value: 60).
  </code></pre>
  
  <p>Haven't been able to reproduce this consistently. And I'm still trying to figure out whether or not there is a correlation with our agent's resources being at full use.</p>
  
  <p><code>docker -v</code> is <code>1.10.1</code> and <code>docker-compose -v</code> is <code>1.13.1</code>.</p>
  
  <p>Any ideas about what this may be related to?</p>