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Only problem was a bug in symfony, $progress = $this->getHelperSet()->get('progress'); gave a deprecation exception that you should use the ProgressBar instead. Although that exception is caused by their own code as you can see here:
https://github.com/symfony/symfony/blob/2.8/src/Symfony/Component/Console/Application.php#L958
When symfony fixed this, the line could be reverted.
Edit: extra commit, laravel 5.1 requires php 5.5.9, that's why travis fails