[Answer]-How to make syncdb show full stack trace

This ticket might be relevant, specifically:

The reason you’re getting this AttributeError upon _meta.model_name access is that property was only introduced in Django 1.6. I’m afraid you’ll have to access _meta.module_name and lower case it on Django < 1.6 to get the same result.

I notice you’re specifying Django 1.5 in your requirements.txt. Possibly one of your third party apps is designed to work with Django 1.6+?