re-running my gerrit, I am now seeing these errors:

==============================
Failed 4 tests - output below:
==============================

keystone.tests.unit.test_backend_sql.SqlIdentity.test_authenticate_and_get_roles_no_metadata
--------------------------------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "keystone/tests/unit/identity/test_backends.py", line 86, in test_authenticate_and_get_roles_no_metadata
        password=user['password'])
      File "keystone/common/manager.py", line 123, in wrapped
        __ret_val = __f(*args, **kwargs)
      File "keystone/notifications.py", line 487, in wrapper
        result = f(wrapped_self, request, user_id, *args, **kwargs)
      File "keystone/identity/core.py", line 410, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 420, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 880, in authenticate
        ref = driver.authenticate(entity_id, password)
      File "keystone/identity/backends/sql.py", line 65, in authenticate
        raise AssertionError(_('Invalid user / password'))
    AssertionError: Invalid user / password
    

Captured pythonlogging:
~~~~~~~~~~~~~~~~~~~~~~~
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    NeedRegenerationException
    no value, waiting for create lock
    value creation lock <dogpile.cache.region._LockWrapper object at 0x7ff17a497d10> acquired
    Calling creation function
    Released creation lock
    

keystone.tests.unit.test_backend_sql.SqlIdentity.test_authenticate
------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "keystone/tests/unit/identity/test_backends.py", line 65, in test_authenticate
        password=self.user_sna['password'])
      File "keystone/common/manager.py", line 123, in wrapped
        __ret_val = __f(*args, **kwargs)
      File "keystone/notifications.py", line 487, in wrapper
        result = f(wrapped_self, request, user_id, *args, **kwargs)
      File "keystone/identity/core.py", line 410, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 420, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 880, in authenticate
        ref = driver.authenticate(entity_id, password)
      File "keystone/identity/backends/sql.py", line 65, in authenticate
        raise AssertionError(_('Invalid user / password'))
    AssertionError: Invalid user / password
    

Captured pythonlogging:
~~~~~~~~~~~~~~~~~~~~~~~
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    NeedRegenerationException
    no value, waiting for create lock
    value creation lock <dogpile.cache.region._LockWrapper object at 0x7f41863eb850> acquired
    Calling creation function
    Released creation lock
    

keystone.tests.unit.test_backend_sql.SqlIdentity.test_set_last_active_at_when_config_setting_is_none
----------------------------------------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "keystone/tests/unit/identity/test_backends.py", line 1418, in test_set_last_active_at_when_config_setting_is_none
        password=self.user_sna['password'])
      File "keystone/common/manager.py", line 123, in wrapped
        __ret_val = __f(*args, **kwargs)
      File "keystone/notifications.py", line 487, in wrapper
        result = f(wrapped_self, request, user_id, *args, **kwargs)
      File "keystone/identity/core.py", line 410, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 420, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 880, in authenticate
        ref = driver.authenticate(entity_id, password)
      File "keystone/identity/backends/sql.py", line 65, in authenticate
        raise AssertionError(_('Invalid user / password'))
    AssertionError: Invalid user / password
    

Captured pythonlogging:
~~~~~~~~~~~~~~~~~~~~~~~
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    Adding cache-proxy 'oslo_cache.testing.CacheIsolatingProxy' to backend.
    NeedRegenerationException
    no value, waiting for create lock
    value creation lock <dogpile.cache.region._LockWrapper object at 0x7f9a26efb690> acquired
    Calling creation function
    Released creation lock
    

keystone.tests.unit.test_backend_sql.SqlIdentity.test_set_last_active_at
------------------------------------------------------------------------

Captured traceback:
~~~~~~~~~~~~~~~~~~~
    Traceback (most recent call last):
      File "keystone/tests/unit/identity/test_backends.py", line 1408, in test_set_last_active_at
        password=self.user_sna['password'])
      File "keystone/common/manager.py", line 123, in wrapped
        __ret_val = __f(*args, **kwargs)
      File "keystone/notifications.py", line 487, in wrapper
        result = f(wrapped_self, request, user_id, *args, **kwargs)
      File "keystone/identity/core.py", line 410, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 420, in wrapper
        return f(self, *args, **kwargs)
      File "keystone/identity/core.py", line 880, in authenticate
        ref = driver.authenticate(entity_id, password)
      File "keystone/identity/backends/sql.py", line 65, in authenticate
        raise AssertionError(_('Invalid user / password'))
    AssertionError: Invalid user / password

I'm going to try wiping out my workspace and such and see if this resolves.