anchor.diff:  :BuildFailed
   echo Build failed with ERRORLEVEL %ERRORLEVEL%
   call :TerminateBuildProcesses
  +:ActuallyFail
   exit /b 1
   
   :TerminateBuildProcesses
  
positive.code: @REM left some floating around).
  
  taskkill /F /IM vbcscompiler.exe 2> nul
  taskkill /F /IM msbuild.exe 2> nul
  
negative.code:         )
      )
  
      call :TerminateBuildProcesses
      .\Binaries\%BuildConfiguration%\Exes\Perf.Runner\Roslyn.Test.Performance.Runner.exe --no-trace-upload !EXTRA_PERF_RUNNER_ARGS! || goto :BuildFailed
      exit /b 0
  )
  