Analyse following RPM build log snippet. Describe contents accurately, without speculation or suggestions for resolution.            
Your analysis must be as concise as possible, while keeping relevant information intact.
Snippet: 
integration-tests/test_unregister.py::test_unregister 
-------------------------------- live log setup --------------------------------
DEBUG    pytest_client_tools:util.py:135 running ['config', '--logging.default_log_level=DEBUG'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['config', '--logging.default_log_level=DEBUG'], returncode=0, stdout='', stderr='')
DEBUG    pytest_client_tools:util.py:135 running ['config', '--server.hostname=localhost', '--server.port=8443', '--server.prefix=/candlepin', '--server.insecure=1'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['config', '--server.hostname=localhost', '--server.port=8443', '--server.prefix=/candlepin', '--server.insecure=1'], returncode=0, stdout='', stderr='')
-------------------------------- live log call ---------------------------------
DEBUG    pytest_client_tools:util.py:135 running ['register', '--username', '<redacted>', '--password', '<redacted>', '--org', '<redacted>'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['register', '--username', '<redacted>', '--password', '<redacted>', '--org', '<redacted>'], returncode=0, stdout='Registering to: localhost:8443/candlepin\nThe system has been registered with ID: 867177e0-6151-47e4-8bac-e3c1d3e3f9c2\nThe registered system name is: ip-172-31-17-224.us-east-2.compute.internal\n', stderr='')
DEBUG    pytest_client_tools:util.py:135 running ['identity'] with options {'check': False, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['identity'], returncode=0, stdout='system identity: 867177e0-6151-47e4-8bac-e3c1d3e3f9c2\nname: ip-172-31-17-224.us-east-2.compute.internal\norg name: Donald Duck\norg ID: donaldduck\nenvironment name: None\n', stderr='')
DEBUG    test_unregister:test_unregister.py:47 Created D-Bus proxy for Unregister interface: com.redhat.RHSM1.Unregister and Unregister object path: /com/redhat/RHSM1/Unregister
DEBUG    test_unregister:test_unregister.py:51 Calling D-Bus method Unregister()...
DEBUG    pytest_client_tools:util.py:135 running ['identity'] with options {'check': False, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['identity'], returncode=1, stdout='', stderr="This system is not yet registered. Try 'subscription-manager register --help' for more information.\n")
PASSED
------------------------------ live log teardown -------------------------------
DEBUG    pytest_client_tools:util.py:135 running ['unregister'] with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['unregister'], returncode=1, stdout='', stderr='This system is currently not registered.\n')
DEBUG    pytest_client_tools:util.py:135 running (['systemctl', 'stop', 'rhsmcertd.service'],) with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['systemctl', 'stop', 'rhsmcertd.service'], returncode=0, stdout='', stderr='')
DEBUG    pytest_client_tools:util.py:135 running (['pkill', '-e', '-x', 'rhsmcertd'],) with options {'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['pkill', '-e', '-x', 'rhsmcertd'], returncode=1, stdout='', stderr='')
------------------------------- live log finish --------------------------------
DEBUG    pytest_client_tools:util.py:135 running (['auditctl', '-m', 'pytest-client-tools-93c06414-6b09-43a8-88e8-53c42d9b5a00'],) with options {'check': True, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['auditctl', '-m', 'pytest-client-tools-93c06414-6b09-43a8-88e8-53c42d9b5a00'], returncode=0, stdout='', stderr='')
DEBUG    pytest_client_tools:util.py:135 running ('ausearch -i -m user | grep -q pytest-client-tools-93c06414-6b09-43a8-88e8-53c42d9b5a00',) with options {'check': False, 'stdin': -3, 'stdout': -1, 'stderr': -1, 'shell': True, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args='ausearch -i -m user | grep -q pytest-client-tools-93c06414-6b09-43a8-88e8-53c42d9b5a00', returncode=0, stdout='', stderr='')
DEBUG    pytest_client_tools:util.py:135 running (['ausearch', '-i', '-m', 'avc', '-ts', '05/05/25', '13:36:53'],) with options {'check': False, 'stdout': -1, 'stderr': -1, 'text': True}
DEBUG    pytest_client_tools:util.py:148 result: CompletedProcess(args=['ausearch', '-i', '-m', 'avc', '-ts', '05/05/25', '13:36:53'], returncode=1, stdout='', stderr='Error - year is 25\n')


Answer: a user can unregister a system