def workerCleanup(info):
        """
        Cleans up the worker node on batch system shutdown. Also see :meth:`supportsWorkerCleanup`.

        :param WorkerCleanupInfo info: A named tuple consisting of all the relevant information
               for cleaning up the worker.
        """
        assert isinstance(info, WorkerCleanupInfo)
        workflowDir = Toil.getWorkflowDir(info.workflowID, info.workDir)
        workflowDirContents = os.listdir(workflowDir)
        shutdownFileStore(workflowDir, info.workflowID)
        if (info.cleanWorkDir == 'always'
            or info.cleanWorkDir in ('onSuccess', 'onError')
            and workflowDirContents in ([], [cacheDirName(info.workflowID)])):
            shutil.rmtree(workflowDir)