Magento Marketplace – Help to identify error

Hi Guys,

Trying to submit an extension to Marketplace, but it fails. I get the error message in the link below, but have no idea why it fails. Only shows “Finished with the “0” exit code.”.

Can someone give me any help?

https://gist.github.com/bvboas/714c66e0c54f316a342f00193fd31636

Thanks