Dotnet vstest.console.dll fails with Index was outside the bounds of the array

[smadala]

Description

dotnet.exe vstest.console.dll with more than seven test sources dll run to fail with error "Error: Index was outside the bounds of the array"

Steps to reproduce

Run dotnet.exe vstest.console.dll with more than 7 test source
Ex: C:\Users\samadala\src\vstest\tools\dotnet\dotnet.exe C:\Users\samadala\src\vstest\artifacts\Debug\netcoreapp1.0\vstest.console.dll C:\Users\samadala\src\vstest\test\datacollector.x86.UnitTests\bin\Debug\netcoreapp1.0\datacollector.x86.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.Client.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.Client.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.Common.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.Common.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.CommunicationUtilities.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.CommunicationUtilities.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.CoreUtilities.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.CoreUtilities.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.CrossPlatEngine.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.CrossPlatEngine.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.Extensions.TrxLogger.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.Extensions.TrxLogger.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.ObjectModel.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.ObjectModel.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.Utilities.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.Utilities.UnitTests.dll C:\Users\samadala\src\vstest\test\Microsoft.TestPlatform.VsTestConsole.TranslationLayer.UnitTests\bin\Debug\netcoreapp1.0\Microsoft.TestPlatform.VsTestConsole.TranslationLayer.UnitTests.dll /platform:x64 /framework:.NETCoreApp,Version=v1.0 /testAdapterPath:C:\Users\samadala\src\vstest\packages\MSTest.TestAdapter\1.1.6-preview\build\_common /parallel

Expected behavior

Test run should successful.

Actual behavior

Failed with Error: Index was outside the bounds of the array
Run is halting forever
StackTrace:
at System.Collections.Generic.Queue1.Enqueue(T item) at Newtonsoft.Json.Serialization.MemoryTraceWriter.Trace(TraceLevel level, String message, Exception ex) at Newtonsoft.Json.Serialization.JsonSerializerInternalBase.IsErrorHandled(Object currentObject, JsonContract contract, Object keyValue, IJsonLineInfo lineInfo, String path, Exception ex) at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.JsonSerializer.SerializeInternal(JsonWriter jsonWriter, Object value, Type objectType) at Newtonsoft.Json.Linq.JToken.FromObjectInternal(Object o, JsonSerializer jsonSerializer) at Microsoft.VisualStudio.TestPlatform.CommunicationUtilities.JsonDataSerializer.SerializePayload(String messageType, Object payload) in C:\Users\samadala\src\vstest\src\Microsoft.TestPlatform.CommunicationUtilities\JsonDataSerializer.cs:line 134 at Microsoft.VisualStudio.TestPlatform.CommunicationUtilities.SocketCommunicationManager.SendMessage(String messageType, Object payload) in C:\Users\samadala\src\vstest\src\Microsoft.TestPlatform.CommunicationUtilities\SocketCommunicationManager.cs:line 222 at Microsoft.VisualStudio.TestPlatform.CommunicationUtilities.TestRequestSender.InitializeExecution(IEnumerable1 pathToAdditionalExtensions, Boolean loadOnlyWellKnownExtensions) in C:\Users\samadala\src\vstest\src\Microsoft.TestPlatform.CommunicationUtilities\TestRequestSender.cs:line 94
at Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client.ProxyExecutionManager.InitializeExtensions(IEnumerable`1 sources) in C:\Users\samadala\src\vstest\src\Microsoft.TestPlatform.CrossPlatEngine\Client\ProxyExecutionManager.cs:line 171
at Microsoft.VisualStudio.TestPlatform.CrossPlatEngine.Client.ProxyExecutionManager.StartTestRun(TestRunCriteria testRunCriteria, ITestRunEventsHandler eventHandler) in C:\Users\samadala\src\vstest\src\Microsoft.TestPlatform.CrossPlatEngine\Client\ProxyExecutionManager.cs:line 94