>     self.test_script()
       >   File "/nix/store/6npq9div2qvq3w62rxzxa2ws7kzrrfpb-nixos-test-driver-1.1/lib/python3.12/site-packages/test_driver/driver.py", line 165, in test_script
       >     exec(self.tests, symbols, None)
       >   File "<string>", line 4, in <module>
       >   File "/nix/store/6npq9div2qvq3w62rxzxa2ws7kzrrfpb-nixos-test-driver-1.1/lib/python3.12/site-packages/test_driver/machine.py", line 374, in wait_for_unit
       >     retry(check_active, timeout)
       >   File "/nix/store/6npq9div2qvq3w62rxzxa2ws7kzrrfpb-nixos-test-driver-1.1/lib/python3.12/site-packages/test_driver/machine.py", line 134, in retry
       >     raise Exception(f"action timed out after {timeout} seconds")
       > Exception: action timed out after 900 seconds
       For full logs, run 'nix log /nix/store/ayfp32vpxxz7hbqy9b7vpha7h022qmva-vm-test-run-mattermost.drv'.