bson.errors.InvalidBSON: year -140744 is out of range

During handling of the above exception, another exception occurred:

self = <test.test_bson.TestDatetimeConversion testMethod=test_millis_from_datetime_ms>

    def test_millis_from_datetime_ms(self):
        # Test 65+ bit integer conversion, expect OverflowError.
        big_ms = 2**65
        with self.assertRaises(OverflowError):
            encode({"x": DatetimeMS(big_ms)})

        # Subclass of DatetimeMS w/ __int__ override, expect an Error.
        class DatetimeMSOverride(DatetimeMS):
            def __int__(self):
                return float(self._value)

        float_ms = DatetimeMSOverride(2)
        with self.assertRaises(TypeError):
            encode({"x": float_ms})

        # Test InvalidBSON errors on conversion include _DATETIME_ERROR_SUGGESTION
        small_ms = -2 << 51
>       with self.assertRaisesRegex(InvalidBSON, re.compile(re.escape(_DATETIME_ERROR_SUGGESTION))):
E       AssertionError: "\(Consider\ Using\ CodecOptions\(datetime_conversion=DATETIME_AUTO\)\ or\ MongoClient\(datetime_conversion='DATETIME_AUTO'\)\)\.\ See:\ https://pymongo\.readthedocs\.io/en/stable/examples/datetimes\.html\#handling\-out\-of\-range\-datetimes" does not match "year -140744 is out of range"

test/test_bson.py:1314: AssertionError