code: def display_cached_string(self, bi):
          
          if not isinstance(bi, SConfBuildInfo):
              SCons.Warnings.warn(SConfWarning,
                "The stored build information has an unexpected class: %s" % bi.__class__)
          else:
              self.display("The original builder output was:\n" +
                           ("  |" + str(bi.string)).replace("\n", "\n  |"))
docs: Logs the original builder messages, given the SConfBuildInfo instance
          bi.