[CrashManager] Handle exceptions from BugProvider

Environment:

Request Method: POST
Request URL: https://[snip]/crashmanager/crashes/204081/createbug/

Django Version: 1.7.1
Python Version: 2.7.6
Installed Applications:
('django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'ec2spotmanager',
'crashmanager',
'rest_framework',
'rest_framework.authtoken',
'chartjs')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.auth.middleware.RemoteUserMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'server.settings.ExceptionLoggingMiddleware')

Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response

1.                 response = wrapped_callback(request, _callback_args, *_callback_kwargs)
   

   File "/usr/local/lib/python2.7/dist-packages/django/contrib/auth/decorators.py" in _wrapped_view

2.             return view_func(request, _args, *_kwargs)
   

   File "[snip]/FuzzManager/server/crashmanager/views.py" in createExternalBug

3.     extBugId = provider.getInstance().handlePOSTCreate(request, entry)
   

   File "[snip]/FuzzManager/server/crashmanager/Bugtracker/BugzillaProvider.py" in handlePOSTCreate

4.         raise RuntimeError("Failed to create bug: %s", ret)
   

Exception Type: RuntimeError at /crashmanager/crashes/204081/createbug/
Exception Value: ('Failed to create bug: %s', {u'code': 410, u'message': u'You must log in before using this part of Bugzilla.', u'documentation': u'http://www.bugzilla.org/docs/tip/en/html/api/', u'error': True})

Start at crashmanager/views.py:createExternalBug and follow the BugProvider call into crashmanager/Bugtracker/BugzillaProvider.py:handlePOSTCreate. Review how exceptions from the provider currently reach Django, then inspect nearby tests or error-handling patterns. Done means provider failures are handled according to the intended issue behavior instead of producing the shown unhandled RuntimeError.