[2019/04/12 12:52:28.718] db version v4.1.10-55-g092e71eab0
 [2019/04/12 12:52:28.718] git version: 092e71eab06999437d8df8ab3e023219fc593963

 [2019/04/12 12:55:29.000] ERROR [0.043s]: test_min_query (test_collection.TestCollection)
 [2019/04/12 12:55:29.000] ----------------------------------------------------------------------
 [2019/04/12 12:55:29.000] Traceback (most recent call last):
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/test/test_collection.py", line 2004, in test_min_query
 [2019/04/12 12:55:29.000]     "$query": {}}))))
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 1122, in next
 [2019/04/12 12:55:29.000]     if len(self.__data) or self._refresh():
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 1039, in _refresh
 [2019/04/12 12:55:29.000]     self.__send_message(q)
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 929, in __send_message
 [2019/04/12 12:55:29.000]     unpack_res=self._unpack_response)
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1271, in _send_message_with_response
 [2019/04/12 12:55:29.000]     exhaust=exhaust)
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1426, in _retryable_read
 [2019/04/12 12:55:29.000]     return func(session, server, sock_info, slave_ok)
 [2019/04/12 12:55:29.000]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1265, in _cmd
 [2019/04/12 12:55:29.000]     unpack_res)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/server.py", line 122, in send_message_with_response
 [2019/04/12 12:55:29.001]     _check_command_response(first)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/helpers.py", line 155, in _check_command_response
 [2019/04/12 12:55:29.001]     raise OperationFailure(msg % errmsg, code, response)
 [2019/04/12 12:55:29.001] OperationFailure: error processing query: ns=pymongo_test.testTree: $and
 [2019/04/12 12:55:29.001] Sort: {}
 [2019/04/12 12:55:29.001] Proj: {}
 [2019/04/12 12:55:29.001]  planner returned error :: caused by :: When using min()/max() a hint of which index to use must be provided
 [2019/04/12 12:55:29.001] ======================================================================
 [2019/04/12 12:55:29.001] ERROR [0.034s]: test_max (test_cursor.TestCursor)
 [2019/04/12 12:55:29.001] ----------------------------------------------------------------------
 [2019/04/12 12:55:29.001] Traceback (most recent call last):
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/test/test_cursor.py", line 460, in test_max
 [2019/04/12 12:55:29.001]     self.assertEqual(len(list(cursor)), 3)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 1122, in next
 [2019/04/12 12:55:29.001]     if len(self.__data) or self._refresh():
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 1039, in _refresh
 [2019/04/12 12:55:29.001]     self.__send_message(q)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 929, in __send_message
 [2019/04/12 12:55:29.001]     unpack_res=self._unpack_response)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1271, in _send_message_with_response
 [2019/04/12 12:55:29.001]     exhaust=exhaust)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1426, in _retryable_read
 [2019/04/12 12:55:29.001]     return func(session, server, sock_info, slave_ok)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1265, in _cmd
 [2019/04/12 12:55:29.001]     unpack_res)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/server.py", line 122, in send_message_with_response
 [2019/04/12 12:55:29.001]     _check_command_response(first)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/helpers.py", line 155, in _check_command_response
 [2019/04/12 12:55:29.001]     raise OperationFailure(msg % errmsg, code, response)
 [2019/04/12 12:55:29.001] OperationFailure: error processing query: ns=pymongo_test.testTree: $and
 [2019/04/12 12:55:29.001] Sort: {}
 [2019/04/12 12:55:29.001] Proj: {}
 [2019/04/12 12:55:29.001]  planner returned error :: caused by :: When using min()/max() a hint of which index to use must be provided
 [2019/04/12 12:55:29.001] ======================================================================
 [2019/04/12 12:55:29.001] ERROR [0.030s]: test_min (test_cursor.TestCursor)
 [2019/04/12 12:55:29.001] ----------------------------------------------------------------------
 [2019/04/12 12:55:29.001] Traceback (most recent call last):
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/test/test_cursor.py", line 490, in test_min
 [2019/04/12 12:55:29.001]     self.assertEqual(len(list(cursor)), 7)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 1122, in next
 [2019/04/12 12:55:29.001]     if len(self.__data) or self._refresh():
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 1039, in _refresh
 [2019/04/12 12:55:29.001]     self.__send_message(q)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/cursor.py", line 929, in __send_message
 [2019/04/12 12:55:29.001]     unpack_res=self._unpack_response)
 [2019/04/12 12:55:29.001]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1271, in _send_message_with_response
 [2019/04/12 12:55:29.002]     exhaust=exhaust)
 [2019/04/12 12:55:29.002]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1426, in _retryable_read
 [2019/04/12 12:55:29.002]     return func(session, server, sock_info, slave_ok)
 [2019/04/12 12:55:29.002]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/mongo_client.py", line 1265, in _cmd
 [2019/04/12 12:55:29.002]     unpack_res)
 [2019/04/12 12:55:29.002]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/server.py", line 122, in send_message_with_response
 [2019/04/12 12:55:29.003]     _check_command_response(first)
 [2019/04/12 12:55:29.003]   File "/data/mci/9df668337493a7babfd9f4f8a1472d87/src/pymongo/helpers.py", line 155, in _check_command_response
 [2019/04/12 12:55:29.003]     raise OperationFailure(msg % errmsg, code, response)
 [2019/04/12 12:55:29.003] OperationFailure: error processing query: ns=pymongo_test.testTree: $and
 [2019/04/12 12:55:29.003] Sort: {}
 [2019/04/12 12:55:29.003] Proj: {}
 [2019/04/12 12:55:29.003]  planner returned error :: caused by :: When using min()/max() a hint of which index to use must be provided