stdout:System.AggregateException: One or more errors occurred. (One or more errors occurred. (The given key 'hideksimsmffcunicz' was not present in the dictionary.))
---> System.AggregateException: One or more errors occurred. (The given key 'hideksimsmffcunicz' was not present in the dictionary.)
---> System.Collections.Generic.KeyNotFoundException: The given key 'hideksimsmffcunicz' was not present in the dictionary.
at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
at dns_netcore.RecursiveResolver.<>c__DisplayClass9_0.<ResolveRecursive>b__0() in /home/_teaching/private/01-dns-netcore/tester-scripts/.build/Solution.cs:line 103
at System.Threading.Tasks.Task`1.InnerInvoke()
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at System.Threading.Tasks.Task`1.get_Result()
at dns_netcore.TestBatch.<>c__DisplayClass5_0.<MeasureQuery>b__0(Task`1 t) in /home/_teaching/private/01-dns-netcore/tester-scripts/.build/Program.cs:line 77
at System.Threading.Tasks.ContinuationResultTaskFromResultTask`2.InnerInvoke()
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
at System.Threading.ExecutionContext.RunFromThreadPoolDispatchLoop(Thread threadPoolThread, ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.Tasks.Task.ExecuteWithThreadLocal(Task& currentTaskSlot, Thread threadPoolThread)
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task.WaitAllCore(Task[] tasks, Int32 millisecondsTimeout, CancellationToken cancellationToken)
at System.Threading.Tasks.Task.WaitAll(Task[] tasks)
at dns_netcore.TestBatch.Run(IRecursiveResolver resolver, DNSEnqueuingClient client, Boolean verbose) in /home/_teaching/private/01-dns-netcore/tester-scripts/.build/Program.cs:line 90
at dns_netcore.Program.Main(String[] args) in /home/_teaching/private/01-dns-netcore/tester-scripts/.build/Program.cs:line 227