There appears to be a race condition in Drivers.Core.BinaryConnectionTests that makes the test fail on certain runs and pass on others.

Specifically: MongoDB.Driver.Core.Connections.BinaryConnectionTests.SendMessageshould_throw_MongoConnectionClosedException_for_waiting_tasks

On the same patch:
Failure:
https://evergreen.mongodb.com/task_log_raw/dot_net_driver_tests__version~2.6_os~windows_64_topology~standalone_auth~auth_ssl~nossl_test_patch_1c20602fb9e95e393c452e91109caa467c541c84_5a15923c2a60ed07c5002abc_17_11_22_15_06_17/0?type=T
Pass:
https://evergreen.mongodb.com/task_log_raw/dot_net_driver_tests__version~2.6_os~windows_64_topology~standalone_auth~auth_ssl~nossl_test_patch_1c20602fb9e95e393c452e91109caa467c541c84_5a15923c2a60ed07c5002abc_17_11_22_15_06_17/1?type=T