$ PYTHONPATH=. python -munittest test/asyncio_tests/test_asyncio_change_stream.py 
Traceback (most recent call last):
 File "/src/motor/test/test_environment.py", line 152, in setup_sync_cx
 client = connected(pymongo.MongoClient(
 File "/src/motor/test/test_environment.py", line 77, in connected
 client.admin.command('ismaster') # Force connection.
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/database.py", line 736, in command
 with self.__client._socket_for_reads(
 File "/usr/lib/python3.9/contextlib.py", line 117, in __enter__
 return next(self.gen)
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1325, in _socket_for_reads
 server = self._select_server(read_preference, session)
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1278, in _select_server
 server = topology.select_server(server_selector)
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/topology.py", line 241, in select_server
 return random.choice(self.select_servers(selector,
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/topology.py", line 199, in select_servers
 server_descriptions = self._select_servers_loop(
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/topology.py", line 215, in _select_servers_loop
 raise ServerSelectionTimeoutError(
pymongo.errors.ServerSelectionTimeoutError: SSL handshake failed: localhost:27017: EOF occurred in violation of protocol (_ssl.c:1129), Timeout: 0.1s, Topology Description: <TopologyDescription id: 60be4a765b1b6f675e55c773, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('SSL handshake failed: localhost:27017: EOF occurred in violation of protocol (_ssl.c:1129)')>]>
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/ssl_support.py", line 128, in get_ssl_context
 ctx.load_cert_chain(certfile, keyfile, passphrase)
ssl.SSLError: [SSL: CA_MD_TOO_WEAK] ca md too weak (_ssl.c:4044)
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
 File "/usr/lib/python3.9/runpy.py", line 197, in _run_module_as_main
 return _run_code(code, main_globals, None,
 File "/usr/lib/python3.9/runpy.py", line 87, in _run_code
 exec(code, run_globals)
 File "/usr/lib/python3.9/unittest/__main__.py", line 18, in <module>
 main(module=None)
 File "/usr/lib/python3.9/unittest/main.py", line 100, in __init__
 self.parseArgs(argv)
 File "/usr/lib/python3.9/unittest/main.py", line 147, in parseArgs
 self.createTests()
 File "/usr/lib/python3.9/unittest/main.py", line 158, in createTests
 self.test = self.testLoader.loadTestsFromNames(self.testNames,
 File "/usr/lib/python3.9/unittest/loader.py", line 220, in loadTestsFromNames
 suites = [self.loadTestsFromName(name, module) for name in names]
 File "/usr/lib/python3.9/unittest/loader.py", line 220, in <listcomp>
 suites = [self.loadTestsFromName(name, module) for name in names]
 File "/usr/lib/python3.9/unittest/loader.py", line 154, in loadTestsFromName
 module = __import__(module_name)
 File "/src/motor/test/__init__.py", line 21, in <module>
 from test.test_environment import env, db_user, CLIENT_PEM
 File "/src/motor/test/test_environment.py", line 341, in <module>
 env.setup()
 File "/src/motor/test/test_environment.py", line 137, in setup
 self.setup_sync_cx()
 File "/src/motor/test/test_environment.py", line 165, in setup_sync_cx
 client = connected(pymongo.MongoClient(
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/mongo_client.py", line 691, in __init__
 self.__options = options = ClientOptions(
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/client_options.py", line 161, in __init__
 self.__pool_options = _parse_pool_options(options)
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/client_options.py", line 131, in _parse_pool_options
 ssl_context, ssl_match_hostname = _parse_ssl_options(options)
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/client_options.py", line 98, in _parse_ssl_options
 ctx = get_ssl_context(
 File "/src/nnis/v/lib/python3.9/site-packages/pymongo/ssl_support.py", line 130, in get_ssl_context
 raise ConfigurationError(
pymongo.errors.ConfigurationError: Private key doesn't match certificate: [SSL: CA_MD_TOO_WEAK] ca md too weak (_ssl.c:4044)
(v) dev:~/src/motor$