title: Why composer install timeouts after 300 seconds?
body: <p>I have small project made in symfony2 when I try to build it on my server it's always fails when unzipping symfony. Build was OK and suddenly composer won't unzip symfony and I didn't change anything. I tried to build with Jenkins and also manually from bash with same result. It's not permissions problem and also internet connection on my server is OK.</p>
  
  <pre><code>Loading composer repositories with package information
  Installing dependencies (including require-dev) from lock file
   - Installing symfony/symfony (v2.3.4)
   Downloading: 100%
  [Symfony\Component\Process\Exception\ProcessTimedOutException]
  The process "unzip '/path/vendor/symfony/symfony/6116f6f3
  d4125a757858954cb107e64b' -d 'vendor/composer/b2f33269' &amp;&amp; chmod -R u+w 'vendor/composer/b2f33269'" exceeded the timeout of 300 seconds.
  </code></pre>