Unhandled Exception: System.NotSupportedException: Stream does not support writing
  at System.IO.FileStream.Write (System.Byte[] src, Int32 src_offset, Int32 count) [0x00000] 
  at System.IO.StreamWriter.FlushBytes () [0x00000] 
  at System.IO.StreamWriter.Decode () [0x00000] 
  at System.IO.StreamWriter.Flush () [0x00000] 
  at System.IO.StreamWriter.Write (System.String value) [0x00000] 
  at System.IO.CStreamWriter.Write (System.String val) [0x00000] 
  at System.IO.TextWriter.Write (System.String format, System.Object arg0, System.Object arg1, System.Object arg2) [0x00000] 
  at System.IO.TextWriter.WriteLine (System.String format, System.Object arg0, System.Object arg1, System.Object arg2) [0x00000] 
  at System.Console.WriteLine (System.String format, System.Object arg0, System.Object arg1, System.Object arg2) [0x00000] 
  at Do.ConsoleLog.Log (LogLevel level, System.String msg, System.Object[] args) [0x00000] 
  at Do.Log.Write (LogLevel lvl, System.String msg, System.Object[] args) [0x00000] 
  at Do.Log.Error (System.String msg, System.Object[] args) [0x00000] 
  at Do.Core.HistogramRelevanceProvider.Serialize () [0x00000] 
  at Do.Core.HistogramRelevanceProvider.OnSerializeTimer (System.Object state) [0x00000] 
  at (wrapper delegate-invoke) System.MulticastDelegate:invoke_void_object (object)
  at System.Threading.Timer+Runner.WaitForDueTime () [0x00000] 
  at System.Threading.Timer+Runner.Start () [0x00000] 
  at (wrapper delegate-invoke) System.MulticastDelegate:invoke_void ()
Segmentation fault (core dumped)