Flaky integration test:

[Aaronontheweb]

Found the error following #311

2020-02-24T21:56:33.9216711Z --------------- BEGIN RUN ---------------
2020-02-24T21:56:33.9217473Z ERROR: Error occurred during $Akka.Tests.Performance.Actor.ActorThroughputSpec+ActorBase_PatternMatch_Throughput SETUP.
2020-02-24T21:56:33.9218394Z   √ NBench.Tests.End2End.NBenchIntregrationTest.RunnerIncludePattern [330ms]
2020-02-24T21:56:33.9347346Z Akka.Configuration.ConfigurationException: Logger [Akka.Event.DefaultLogger] specified in config cannot be loaded: System.AggregateException: One or more errors occurred. (Timeout after 00:00:05 seconds)
2020-02-24T21:56:33.9349164Z  ---> Akka.Actor.AskTimeoutException: Timeout after 00:00:05 seconds
2020-02-24T21:56:33.9350086Z    at Akka.Actor.Futures.Ask(ICanTell self, Func`2 messageFactory, IActorRefProvider provider, Nullable`1 timeout, CancellationToken cancellationToken)
2020-02-24T21:56:33.9351044Z    at Akka.Actor.Futures.Ask[T](ICanTell self, Func`2 messageFactory, Nullable`1 timeout, CancellationToken cancellationToken)
2020-02-24T21:56:33.9351766Z    --- End of inner exception stack trace ---
2020-02-24T21:56:33.9352429Z    at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
2020-02-24T21:56:33.9353114Z    at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
2020-02-24T21:56:33.9353837Z    at System.Threading.Tasks.Task`1.get_Result()
2020-02-24T21:56:33.9354713Z    at Akka.Event.LoggingBus.AddLogger(ActorSystemImpl system, Type loggerType, LogLevel logLevel, String loggingBusName, TimeSpan timeout)
2020-02-24T21:56:33.9355513Z    at Akka.Event.LoggingBus.StartDefaultLoggers(ActorSystemImpl system)
2020-02-24T21:56:33.9356221Z  ---> System.AggregateException: One or more errors occurred. (Timeout after 00:00:05 seconds)
2020-02-24T21:56:33.9357025Z  ---> Akka.Actor.AskTimeoutException: Timeout after 00:00:05 seconds
2020-02-24T21:56:33.9357865Z    at Akka.Actor.Futures.Ask(ICanTell self, Func`2 messageFactory, IActorRefProvider provider, Nullable`1 timeout, CancellationToken cancellationToken)
2020-02-24T21:56:33.9358775Z    at Akka.Actor.Futures.Ask[T](ICanTell self, Func`2 messageFactory, Nullable`1 timeout, CancellationToken cancellationToken)
2020-02-24T21:56:33.9359442Z    --- End of inner exception stack trace ---
2020-02-24T21:56:33.9360103Z    at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
2020-02-24T21:56:33.9360835Z    at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
2020-02-24T21:56:33.9361490Z    at System.Threading.Tasks.Task`1.get_Result()
2020-02-24T21:56:33.9362192Z    at Akka.Event.LoggingBus.AddLogger(ActorSystemImpl system, Type loggerType, LogLevel logLevel, String loggingBusName, TimeSpan timeout)
2020-02-24T21:56:33.9362971Z    at Akka.Event.LoggingBus.StartDefaultLoggers(ActorSystemImpl system)
2020-02-24T21:56:33.9363589Z    --- End of inner exception stack trace ---
2020-02-24T21:56:33.9364223Z    at Akka.Event.LoggingBus.StartDefaultLoggers(ActorSystemImpl system)
2020-02-24T21:56:33.9364833Z    at Akka.Actor.LocalActorRefProvider.Init(ActorSystemImpl system)
2020-02-24T21:56:33.9365498Z    at Akka.Actor.Internal.ActorSystemImpl.Start()
2020-02-24T21:56:33.9366140Z    at Akka.Actor.ActorSystem.CreateAndStartSystem(String name, Config withFallback)
2020-02-24T21:56:33.9366740Z    at Akka.Actor.ActorSystem.Create(String name)
2020-02-24T21:56:33.9367644Z    at Akka.Tests.Performance.Actor.ActorThroughputSpec.Setup(BenchmarkContext context) in D:\a\1\s\src\NBench.Tests.Performance.WithDependencies\Actor\ActorThroughputSpec.cs:line 212
2020-02-24T21:56:33.9368863Z    at NBench.Sdk.ReflectionBenchmarkInvoker.InvokePerfSetup(BenchmarkContext context) in D:\a\1\s\src\NBench\Sdk\ReflectionBenchmarkInvoker.cs:line 38
2020-02-24T21:56:33.9369797Z    at NBench.Sdk.Benchmark.PreRun() in D:\a\1\s\src\NBench\Sdk\Benchmark.cs:line 272
2020-02-24T21:56:33.9370685Z ERROR: Error occurred during $Akka.Tests.Performance.Actor.ActorThroughputSpec+ActorBase_PatternMatch_Throughput RUN.
2020-02-24T21:56:33.9371429Z System.NullReferenceException: Object reference not set to an instance of an object.
2020-02-24T21:56:33.9372485Z    at Akka.Tests.Performance.Actor.ActorThroughputSpec.ActorBase_PatternMatch_Throughput(BenchmarkContext context) in D:\a\1\s\src\NBench.Tests.Performance.WithDependencies\Actor\ActorThroughputSpec.cs:line 230
2020-02-24T21:56:33.9373706Z    at NBench.Sdk.ReflectionBenchmarkInvoker.InvokeRun(BenchmarkContext context) in D:\a\1\s\src\NBench\Sdk\ReflectionBenchmarkInvoker.cs:line 58
2020-02-24T21:56:33.9374631Z    at NBench.Sdk.Benchmark.WarmUp() in D:\a\1\s\src\NBench\Sdk\Benchmark.cs:line 146
2020-02-24T21:56:33.9375318Z ERROR: Error occurred during $Akka.Tests.Performance.Actor.ActorThroughputSpec+ActorBase_PatternMatch_Throughput CLEANUP.
2020-02-24T21:56:33.9375908Z System.NullReferenceException: Object reference not set to an instance of an object.
2020-02-24T21:56:33.9377074Z    at Akka.Tests.Performance.Actor.ActorThroughputSpec.Cleanup() in D:\a\1\s\src\NBench.Tests.Performance.WithDependencies\Actor\ActorThroughputSpec.cs:line 241
2020-02-24T21:56:33.9378436Z    at NBench.Sdk.ReflectionBenchmarkInvoker.<>c__DisplayClass14_0.<CreateDelegateWithoutContext>b__0(BenchmarkContext context) in D:\a\1\s\src\NBench\Sdk\ReflectionBenchmarkInvoker.cs:line 90
2020-02-24T21:56:33.9379435Z    at NBench.Sdk.ReflectionBenchmarkInvoker.InvokePerfCleanup(BenchmarkContext context) in D:\a\1\s\src\NBench\Sdk\ReflectionBenchmarkInvoker.cs:line 64
2020-02-24T21:56:33.9380220Z    at NBench.Sdk.Benchmark.PostRun() in D:\a\1\s\src\NBench\Sdk\Benchmark.cs:line 323
2020-02-24T21:56:33.9380877Z WARNING: Error during previous run of Akka.Tests.Performance.Actor.ActorThroughputSpec+ActorBase_PatternMatch_Throughput. Aborting run...
2020-02-24T21:56:33.9381590Z --------------- RESULTS: Akka.Tests.Performance.Actor.ActorThroughputSpec+ActorBase_PatternMatch_Throughput ---------------