Stack Trace:

       at BasicEventSourceTests.TestsWriteEvent.<>c__DisplayClass10_1.<Test_WriteEvent>b__31(Event evt) in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\TestsWriteEvent.cs:line 351
   at BasicEventSourceTests.EventTestHarness.<>c__DisplayClass2_0.<RunTests>b__0(Event data) in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\Harness\EventTestHarness.cs:line 82
   at BasicEventSourceTests.EtwListener.OnEventHelper(TraceEvent data) in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\Harness\Listeners.cs:line 258
   at Microsoft.Diagnostics.Tracing.Parsers.DynamicTraceEventData.Dispatch()
   at Microsoft.Diagnostics.Tracing.TraceEventDispatcher.DoDispatch(TraceEvent anEvent)
   at Microsoft.Diagnostics.Tracing.TraceEventDispatcher.Dispatch(TraceEvent anEvent)
   at Microsoft.Diagnostics.Tracing.ETWTraceEventSource.RawDispatch(EVENT_RECORD* rawData)
   at Microsoft.Diagnostics.Tracing.TraceEventNativeMethods.ProcessTrace(UInt64[] handleArray, UInt32 handleCount, IntPtr StartTime, IntPtr EndTime)
   at Microsoft.Diagnostics.Tracing.ETWTraceEventSource.ProcessOneFile()
   at Microsoft.Diagnostics.Tracing.ETWTraceEventSource.Process()
   at BasicEventSourceTests.EtwListener.Dispose() in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\Harness\Listeners.cs:line 238
   at BasicEventSourceTests.EventTestHarness.RunTests(List`1 tests, Listener listener, EventSource source, FilteringOptions options) in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\Harness\EventTestHarness.cs:line 170
   at BasicEventSourceTests.TestsWriteEvent.Test_WriteEvent(Listener listener, Boolean useSelfDescribingEvents) in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\TestsWriteEvent.cs:line 430
   at BasicEventSourceTests.TestsWriteEvent.Test_WriteEvent_SelfDescribing_ETW() in E:\A\_work\63\s\corefx\src\System.Diagnostics.Tracing\tests\BasicEventSourceTest\TestsWriteEvent.cs:line 79