```
sources-test_1  |
sources-test_1  | Running all tests
sources-test_1  | /usr/local/lib/python2.7/dist-packages/django/db/backends/postgresql/base.py:267: RuntimeWarning: Normally Django will use a connection to the 'postgres' database to avoid running initialization queries against the production database when it's not needed (for example, when running tests). Django was unable to create a connection to the 'postgres' database and will use the default database instead.
sources-test_1  |   RuntimeWarning
sources-test_1  | Traceback (most recent call last):
sources-test_1  |   File "manage.py", line 22, in <module>
sources-test_1  |     execute_from_command_line(sys.argv)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
sources-test_1  | Creating test database for alias 'default' ('test_serviceerror')...
sources-test_1  |     utility.execute()
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 355, in execute
sources-test_1  |     self.fetch_command(subcommand).run_from_argv(self.argv)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 29, in run_from_argv
sources-test_1  |     super(Command, self).run_from_argv(argv)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 283, in run_from_argv
sources-test_1  |     self.execute(*args, **cmd_options)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/core/management/base.py", line 330, in execute
sources-test_1  |     output = self.handle(*args, **options)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/core/management/commands/test.py", line 62, in handle
sources-test_1  |     failures = test_runner.run_tests(test_labels)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 601, in run_tests
sources-test_1  |     old_config = self.setup_databases()
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/test/runner.py", line 546, in setup_databases
sources-test_1  |     self.parallel, **kwargs
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/test/utils.py", line 187, in setup_databases
sources-test_1  |     serialize=connection.settings_dict.get('TEST', {}).get('SERIALIZE', True),
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/creation.py", line 55, in create_test_db
sources-test_1  |     self._create_test_db(verbosity, autoclobber, keepdb)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/creation.py", line 164, in _create_test_db
sources-test_1  |     with self._nodb_connection.cursor() as cursor:
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/base.py", line 254, in cursor
sources-test_1  |     return self._cursor()
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/base.py", line 229, in _cursor
sources-test_1  |     self.ensure_connection()
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/base.py", line 213, in ensure_connection
sources-test_1  |     self.connect()
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/utils.py", line 94, in __exit__
sources-test_1  |     six.reraise(dj_exc_type, dj_exc_value, traceback)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/base.py", line 213, in ensure_connection
sources-test_1  |     self.connect()
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/base/base.py", line 189, in connect
sources-test_1  |     self.connection = self.get_new_connection(conn_params)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/django/db/backends/postgresql/base.py", line 176, in get_new_connection
sources-test_1  |     connection = Database.connect(**conn_params)
sources-test_1  |   File "/usr/local/lib/python2.7/dist-packages/psycopg2/__init__.py", line 130, in connect
sources-test_1  |     conn = _connect(dsn, connection_factory=connection_factory, **kwasync)
sources-test_1  | django.db.utils.OperationalError: could not connect to server: Connection refused
sources-test_1  |       Is the server running on host "localhost" (127.0.0.1) and accepting
sources-test_1  |       TCP/IP connections on port 5432?
sources-test_1  | could not connect to server: Cannot assign requested address
sources-test_1  |       Is the server running on host "localhost" (::1) and accepting
sources-test_1  |       TCP/IP connections on port 5432?
```