this derivation will be built:
  /nix/store/3j40ng01kfjsy6my7zqbvl7avyw1w0wi-vm-test-run-tribuchet.drv
error: Cannot build '/nix/store/3j40ng01kfjsy6my7zqbvl7avyw1w0wi-vm-test-run-tribuchet.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/lb23436z8bb5ivdqfksz1m2hwlgivpmv-vm-test-run-tribuchet
       Last 25 log lines:
       > Note: this requires systemd-ssh-proxy(1) to be enabled (default on NixOS 25.05 and newer).
       >     hub:     ssh -o User=root vsock-mux//build/tmphvu2qfw7/hub_host.socket
       >     worker:  ssh -o User=root vsock-mux//build/tmphvu2qfw7/worker_host.socket
       > additionally exposed symbols:
       >     hub, worker,
       >     vlan1,
       >     start_all, test_script, machines, machines_qemu, machines_nspawn, vlans, driver, log, os, create_machine, subtest, run_tests, join_all, retry, serial_stdout_off, serial_stdout_on, polling_condition, BaseMachine, QemuMachine, NspawnMachine, t, debug, dump_machine_ssh
       > Traceback (most recent call last):
       >   File "/nix/store/1rlh2jgyskahg1faaxff2d2f78xv77iq-nixos-test-driver-1.1/bin/.nixos-test-driver-wrapped", line 9, in <module>
       >     sys.exit(main())
       >              ~~~~^^
       >   File "/nix/store/1rlh2jgyskahg1faaxff2d2f78xv77iq-nixos-test-driver-1.1/lib/python3.13/site-packages/test_driver/__init__.py", line 183, in main
       >     driver.run_tests()
       >     ~~~~~~~~~~~~~~~~^^
       >   File "/nix/store/1rlh2jgyskahg1faaxff2d2f78xv77iq-nixos-test-driver-1.1/lib/python3.13/site-packages/test_driver/driver.py", line 434, in run_tests
       >     self.test_script()
       >     ~~~~~~~~~~~~~~~~^^
       >   File "/nix/store/1rlh2jgyskahg1faaxff2d2f78xv77iq-nixos-test-driver-1.1/lib/python3.13/site-packages/test_driver/driver.py", line 392, in test_script
       >     exec(self.tests, symbols, None)
       >     ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >   File "<string>", line 47, in <module>
       >   File "/nix/store/l9k0anq0z7zz81zcwy035jfwap9ga6rl-python3-3.13.13/lib/python3.13/subprocess.py", line 577, in run
       >     raise CalledProcessError(retcode, process.args,
       >                              output=stdout, stderr=stderr)
       > subprocess.CalledProcessError: Command '['/nix/store/jd2k574ryxnjvfnqn9j1y8j3kakmrz8c-tribuchet-e2e-0.1.0/bin/tribuchet-e2e', 'build_', '--nocapture', '--test-threads=8']' returned non-zero exit status 101.
       For full logs, run:
         nix log /nix/store/3j40ng01kfjsy6my7zqbvl7avyw1w0wi-vm-test-run-tribuchet.drv