Symfony/Process fails

gistfile1.txt

grosroro@grosroro-desktop:~/workspace/MediaVorus$ php composer.phar install
Password: 

Installing dependencies                               
  - Package symfony/console (dev-master)
    Cloning 81b09796160a382f6c01a54f6c7d7e091ae1b7bf

  - Package symfony/css-selector (dev-master)
    Cloning 615d450be946a0573b3d7d62cf8dacf63e16eff5

  - Package symfony/dom-crawler (dev-master)
    Cloning 0186d8495c90277d9a8cfb6fb47d5095b5d07048

  - Package symfony/finder (dev-master)
    Cloning 713ba1dbd03b424afd1f944626dc0ce1b5b8c442

  - Package symfony/process (dev-master)
    Cloning 8cf4f692dacd94261548c12e90ef310a609a054c


                                                                                                            
  [RuntimeException]                                                                                        
  Failed to checkout 'http://github.com/symfony/Process' via git, https and http protocols, aborting.       
                                                                                                            
  error: The requested URL returned error: 403 while accessing http://github.com/symfony/Process/info/refs  
                                                                                                            
  fatal: HTTP request failed