Crashed Thread

crash.txt

Thread 11 name:  Threadpool worker
Thread 11 Crashed:
0   libsystem_kernel.dylib        	0x0000000180f2d348 __pthread_kill + 8
1   libsystem_pthread.dylib       	0x0000000181041354 pthread_kill$VARIANT$mp + 396
2   libsystem_c.dylib             	0x0000000180e9d07c __abort + 152
3   libsystem_c.dylib             	0x0000000180e9cfe4 __abort + 0
4   libsystem_c.dylib             	0x0000000180e70abc basename_r + 0
5   LiteCore                      	0x0000000103a3c5a8 litecore::websocket::WebSocket::delegate() const + 1033640 (WebSocketInterface.hh:109)
6   LiteCore                      	0x0000000103bbe038 litecore::websocket::WebSocketImpl::onConnect() + 2613304 (WebSocketImpl.cc:89)
7   LiteCore                      	0x00000001039b63e8 c4socket_opened + 484328 (c4Socket.cc:158)
8   TestServer.iOS                	0x00000001033a1890 wrapper_managed_to_native_LiteCore_Interop_Native_c4socket_opened_LiteCore_Interop_C4Socket_ + 160
9   TestServer.iOS                	0x0000000103391670 LiteCore_Interop_LiteCoreImpl_c4socket_opened_LiteCore_Interop_C4Socket_ + 19682928 (LiteCore_impl.cs:180)
10  TestServer.iOS                	0x0000000102bd8a5c Couchbase_Lite_Interop_Native_c4socket_opened_LiteCore_Interop_C4Socket_ + 11586140 (LiteCore_shell.cs:182)
11  TestServer.iOS                	0x0000000102c3c18c Couchbase_Lite_Internal_P2P_CouchbaseSocket_PassiveConnectionOpened + 11993484 (CouchbaseSocket.cs:164)
12  TestServer.iOS                	0x0000000102c68b0c Couchbase_Lite_P2P_MessageEndpointListener_Accept_Couchbase_Lite_P2P_IMessageEndpointConnection + 12176140 (MessageEndpointListener.cs:97)
13  TestServer.iOS                	0x00000001029972d4 Couchbase_Lite_Testing_ReplicatorTcpListener__AcceptLoopd__8_MoveNext + 9220820 (ReplicatorTcpListener.cs:79)
14  TestServer.iOS                	0x000000010227fa1c System_Runtime_CompilerServices_AsyncMethodBuilderCore_MoveNextRunner_InvokeMoveNext_object + 156
15  TestServer.iOS                	0x0000000102235524 System_Threading_ExecutionContext_RunInternal_System_Threading_ExecutionContext_System_Threading_ContextCallback_object_bool + 404
16  TestServer.iOS                	0x000000010223537c System_Threading_ExecutionContext_Run_System_Threading_ExecutionContext_System_Threading_ContextCallback_object_bool + 44
17  TestServer.iOS                	0x000000010227f8dc System_Runtime_CompilerServices_AsyncMethodBuilderCore_MoveNextRunner_Run + 188
18  TestServer.iOS                	0x000000010224de4c System_Threading_Tasks_AwaitTaskContinuation_RunOrScheduleAction_System_Action_bool_System_Threading_Tasks_Task_ + 108
19  TestServer.iOS                	0x0000000102249020 System_Threading_Tasks_Task_FinishContinuations + 352
20  TestServer.iOS                	0x0000000102247078 System_Threading_Tasks_Task_FinishStageThree + 152
21  TestServer.iOS                	0x0000000102241f34 System_Threading_Tasks_Task_1_TResult_REF_TrySetResult_TResult_REF + 276
22  TestServer.iOS                	0x0000000102242dfc System_Threading_Tasks_TaskFactory_1_TResult_REF_FromAsyncCoreLogic_System_IAsyncResult_System_Func_2_System_IAsyncResult_TResult_REF_System_Action_1_System_IAsyncResult_System_Threading_Tasks_Task_1_TResult_REF_bool + 732
23  TestServer.iOS                	0x00000001022440b4 System_Threading_Tasks_TaskFactory_1__c__DisplayClass35_1_TResult_REF__FromAsyncImplb__1_System_IAsyncResult + 132
24  TestServer.iOS                	0x000000010250c374 System_Net_Sockets_SocketAsyncResult__c__Completeb__27_0_object + 4457332 (SocketAsyncResult.cs:157)
25  TestServer.iOS                	0x000000010223c7c4 System_Threading_QueueUserWorkItemCallback_System_Threading_IThreadPoolWorkItem_ExecuteWorkItem + 52
26  TestServer.iOS                	0x000000010223a668 System_Threading_ThreadPoolWorkQueue_Dispatch + 536
27  TestServer.iOS                	0x00000001023e94b0 ObjCRuntime_Runtime_ThreadPoolDispatcher_System_Func_1_bool + 3265712 (Runtime.cs:280)
28  TestServer.iOS                	0x000000010223c5f8 System_Threading__ThreadPoolWaitCallback_PerformWaitCallback + 136
29  TestServer.iOS                	0x0000000102367c88 wrapper_runtime_invoke_object_runtime_invoke_dynamic_intptr_intptr_intptr_intptr + 248
30  TestServer.iOS                	0x00000001033f4e38 mono_jit_runtime_invoke + 20090424 (mini-runtime.c:2783)
31  TestServer.iOS                	0x000000010345e2e8 mono_runtime_try_invoke + 20521704 (object.c:2887)
32  TestServer.iOS                	0x0000000103482244 worker_callback + 20668996 (threadpool.c:366)
33  TestServer.iOS                	0x0000000103480c30 worker_thread + 20663344 (threadpool-worker-default.c:481)
34  TestServer.iOS                	0x000000010348787c start_wrapper + 20691068 (threads.c:1004)
35  libsystem_pthread.dylib       	0x000000018104032c _pthread_body + 308
36  libsystem_pthread.dylib       	0x00000001810401f8 _pthread_body + 0
37  libsystem_pthread.dylib       	0x000000018103ec38 thread_start + 4