temporary data file aa...aa cannot be deleted. error number=bbb

aa...aa: Temporary data file name (/tmp/xxxxx)

bbb: Error number (errno of the unlink system call)

S: Continues processing.

O: If the error causes a problem in the test, terminate the offline tester. Then, remove the cause of the error and reactivate the offline tester. If no problem arises in the test, ignore this message.