Random test failure #2

[prolic]

1) ProophTest\EventStoreClient\connect_to_existing_persistent_subscription_with_start_from_x_set_and_events_in_it::the_subscription_gets_the_written_event_as_its_first_event
Failed asserting that 5 is identical to 4.
/home/travis/build/prooph/event-store-client/tests/connect_to_existing_persistent_subscription_with_start_from_x_set_and_events_in_it.php:141
/home/travis/build/prooph/event-store-client/tests/SpecificationWithConnection.php:48
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Coroutine.php:74
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Internal/Placeholder.php:127
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Deferred.php:41
/home/travis/build/prooph/event-store-client/src/ClientOperations/AbstractOperation.php:130
/home/travis/build/prooph/event-store-client/src/ClientOperations/AppendToStreamOperation.php:91
/home/travis/build/prooph/event-store-client/src/ClientOperations/AbstractOperation.php:105
/home/travis/build/prooph/event-store-client/src/Internal/EventStoreConnectionLogicHandler.php:807
/home/travis/build/prooph/event-store-client/src/Internal/EventStoreConnectionLogicHandler.php:169
/home/travis/build/prooph/event-store-client/src/Internal/MessageHandler.php:38
/home/travis/build/prooph/event-store-client/src/Internal/EventStoreConnectionLogicHandler.php:183
/home/travis/build/prooph/event-store-client/src/Internal/EventStoreConnectionLogicHandler.php:321
/home/travis/build/prooph/event-store-client/src/Transport/Tcp/TcpPackageConnection.php:184
/home/travis/build/prooph/event-store-client/src/Transport/Tcp/TcpPackageConnection.php:101
/home/travis/build/prooph/event-store-client/src/Transport/Tcp/LengthPrefixMessageFramer.php:78
/home/travis/build/prooph/event-store-client/src/Transport/Tcp/TcpPackageConnection.php:212
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Coroutine.php:74
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Internal/Placeholder.php:127
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Deferred.php:41
/home/travis/build/prooph/event-store-client/vendor/amphp/byte-stream/lib/ResourceInputStream.php:92
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Loop/NativeDriver.php:172
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Loop/NativeDriver.php:68
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Loop/Driver.php:130
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Loop/Driver.php:70
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/Loop.php:76
/home/travis/build/prooph/event-store-client/vendor/amphp/amp/lib/functions.php:158
/home/travis/build/prooph/event-store-client/tests/SpecificationWithConnection.php:51
/home/travis/build/prooph/event-store-client/tests/connect_to_existing_persistent_subscription_with_start_from_x_set_and_events_in_it.php:143