https://pantheon.corp.google.com/errors/16044591379238181608?time=P30D&filter&project=findit-for-me


The root cause seems to be similar to the one for  bug 700498 


Traceback (most recent call last):
  File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1535, in __call__
    rv = self.handle_exception(request, response, e)
  File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1529, in __call__
    rv = self.router.dispatch(request, response)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/first_party/gae_ts_mon/config.py", line 257, in dispatch
    time_fn=time_fn)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/first_party/gae_ts_mon/config.py", line 219, in _instrumented_dispatcher
    ret = dispatcher(request, response)
  File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1278, in default_dispatcher
    return route.handler_adapter(request, response)
  File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 1102, in __call__
    return handler.dispatch()
  File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 572, in dispatch
    return self.handle_exception(e, self.app.debug)
  File "/base/data/home/runtimes/python27/python27_lib/versions/third_party/webapp2-2.5.2/webapp2.py", line 570, in dispatch
    return method(*args, **kwargs)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py", line 2786, in get
    self.run_callback()
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py", line 2863, in run_callback
    callback_result = perform_callback()
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py", line 2853, in perform_callback
    return stage._callback_internal(kwargs)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/first_party/pipeline_utils/appengine_third_party_pipeline_python_src_pipeline/pipeline.py", line 1099, in _callback_internal
    return self.callback(**kwargs)
  File "/base/data/home/apps/s~findit-for-me/waterfall-backend:ea9e1af37.399984549731806797/waterfall/process_base_swarming_task_result_pipeline.py", line 98, in callback
    task = self._GetSwarmingTask(*call_args)
TypeError: _GetSwarmingTask() takes exactly 5 arguments (75 given)