self._log('renaming deleted file to backup: %s' % (abspath_u,))
try:
fileutil.rename_no_overwrite(abspath_u, abspath_u + u'.backup')
self._log('renaming deleted file to backup: %s' % (abspath_u,))
try:
fileutil.rename_no_overwrite(abspath_u, abspath_u + u'.backup')