def puts_rack_output
      return unless File.exist?(JETS_OUTPUT)
      puts IO.readlines(JETS_OUTPUT)
      File.truncate(JETS_OUTPUT, 0)
    end
def puts_rack_output
      return unless File.exist?(JETS_OUTPUT)
      puts IO.readlines(JETS_OUTPUT)
      File.truncate(JETS_OUTPUT, 0)
    end
Grab the rack output from the /tmp/jets-output.log and puts it back in the
 main process' stdout