these 42 derivations will be built:
  /nix/store/08394q9259j4msagdgp9cih6iahv75zw-unit-nix-grpc-daemon.service.drv
  /nix/store/lmx6km5n84p7zi0hz566jxwv9ip6yryx-nix.conf.drv
  /nix/store/hlf6qm920dhhcdn5sfi1crdfxlmc79k8-X-Restart-Triggers-nix-daemon.drv
  /nix/store/d1adycxrnr4wjy23pwl7ysgny4cnns4l-unit-nix-daemon.service.drv
  /nix/store/di8wzmlfhv85rjf3zk0mp89sl5kch13v-unit-nix-grpc-daemon.service.drv
  /nix/store/9vrn910qxwcb8vbh7yj88jrz0c96j4p0-system-units.drv
  /nix/store/0pvy08y0b42lcmqv1y416i4d6bibalgq-etc.drv
  /nix/store/7jyzfxwj46zx1sfjv7krn4vhr9sagn7i-nix.conf.drv
  /nix/store/943a6ky6f1zbbx9fp4xmc1ydm0iakvqp-X-Restart-Triggers-nix-daemon.drv
  /nix/store/9ra3x86xdn1vmszydg18hxrz70nc8hbi-unit-nix-daemon.service.drv
  /nix/store/a3kpqvc692y6dxc4x5vi1ayxs6af1y7y-system-units.drv
  /nix/store/wals1fa99iw6nafgxijjspm3hpxyshvi-etc.drv
  /nix/store/rr15rvsrkwwqkpg9kzm3s4lxzkysxpv8-activate.drv
  /nix/store/3dk0jigsvwysjqwpmb5qha8f8jjklj7v-unit-nix-grpc-daemon.service.drv
  /nix/store/bd1y9jg6dlhvk073ndq3bnlb89gjl25y-system-units.drv
  /nix/store/711yc84gqi8rajhnvjcpzpwdg8irnky5-etc.drv
  /nix/store/8kisjhhbkd2n4z18nxyn4p4481xb1vb2-activate.drv
  /nix/store/z6dlqzxj1443dlxlh2g3y2ph70468w3p-nixos-system-worker2-test.drv
  /nix/store/0xwvyzhp9inay4xr90pjwfv70yvzgfnz-nixos-system-worker2-test.drv
  /nix/store/bgpfc82yxnk93xjkvyknwx6l2z4hikw9-nix.conf.drv
  /nix/store/5am2hbxi58rb6hyzi5bmzyks0lx1wym5-X-Restart-Triggers-nix-daemon.drv
  /nix/store/24nqr16mfm3g03x1r3frzc64jzbzw5vf-unit-nix-daemon.service.drv
  /nix/store/21z6h6v30vypbjz8i0cmwmy5dnc2nw03-system-units.drv
  /nix/store/30sh619sq5yyks64r6pfpd7yqyhxyx6w-activate.drv
  /nix/store/7pcacpw4k6p2nsqbfx121lfkka4i6a3h-etc.drv
  /nix/store/6mc07j9bck751h6xiaxc08izjdqzlmnz-activate.drv
  /nix/store/3128dccfqxiznqai9fn25a7abprv6y97-nixos-system-client-test.drv
  /nix/store/85v0bpqxz1xn5rix7jcr535ilz3hgiji-nix-grpc-e2e.drv
  /nix/store/7vx3y1yh0claj1076l0fncklqzqmcw34-test-script.drv
  /nix/store/6i41diql3h5f7ibqlpy4iwnnwpk84d6x-nixos-system-worker1-test.drv
  /nix/store/z7idadpbi0dsnnq6q6b3yxcmlx636p5m-closure-info.drv
  /nix/store/71lkvy2am52z7zs5pn7b2jciyr7xnhzn-run-nixos-vm.drv
  /nix/store/acrprdbr2mq1djqjx18zl7cnhlas9s2a-nixos-vm.drv
  /nix/store/f2p66lxz0g8rpj8dm0li6q9vkdnd69rl-closure-info.drv
  /nix/store/733s4g49syn8z4khv4hkqkis2ajxjk66-run-nixos-vm.drv
  /nix/store/dr0mbbmvpisdw0mixl86ripn26shw1lp-nixos-vm.drv
  /nix/store/5vq0n80nsily3scnjypnynzg4cx81ngg-closure-info.drv
  /nix/store/l03gh8pwsl9bdgifs46spv590fvdzf8x-run-nixos-vm.drv
  /nix/store/z254rr6ad64qy5klixps6zxxpdvg6dw6-nixos-vm.drv
  /nix/store/4bmagcl4iyi0ryfb1zvwy1zssz48ya8x-driverConfiguration.json.drv
  /nix/store/rwf6aga5d7qylyxlimkrmaxnanii25xj-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/skp2b29jgbk8aba7jliszbqayr5px86h-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/skp2b29jgbk8aba7jliszbqayr5px86h-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/3n9fppjqy16lii5cmw2c9s287akxmp39-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       >     worker1:  ssh -o User=root vsock-mux//build/tmpr9wi5kmn/worker1_host.socket
       >     worker2:  ssh -o User=root vsock-mux//build/tmpr9wi5kmn/worker2_host.socket
       > additionally exposed symbols:
       >     client, lb, worker1, worker2,
       >     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/bsfvpn8q2430b9gbcb0d939kswyw8fyr-nixos-test-driver-1.1/bin/.nixos-test-driver-wrapped", line 9, in <module>
       >     sys.exit(main())
       >              ~~~~^^
       >   File "/nix/store/bsfvpn8q2430b9gbcb0d939kswyw8fyr-nixos-test-driver-1.1/lib/python3.14/site-packages/test_driver/__init__.py", line 194, in main
       >     driver.run_tests()
       >     ~~~~~~~~~~~~~~~~^^
       >   File "/nix/store/bsfvpn8q2430b9gbcb0d939kswyw8fyr-nixos-test-driver-1.1/lib/python3.14/site-packages/test_driver/driver.py", line 437, in run_tests
       >     self.test_script()
       >     ~~~~~~~~~~~~~~~~^^
       >   File "/nix/store/bsfvpn8q2430b9gbcb0d939kswyw8fyr-nixos-test-driver-1.1/lib/python3.14/site-packages/test_driver/driver.py", line 395, in test_script
       >     exec(self.tests, symbols, None)
       >     ~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^
       >   File "<string>", line 42, in <module>
       >   File "<string>", line 10, in run_e2e
       >   File "/nix/store/81ag9nxz1flw3xjkv1vvqg8y2ipx2ins-python3-3.14.7/lib/python3.14/subprocess.py", line 578, in run
       >     raise CalledProcessError(retcode, process.args,
       >                              output=stdout, stderr=stderr)
       > subprocess.CalledProcessError: Command '['/nix/store/4rs81gqp2fzbvxci04qb20hg0sfx3nad-nix-grpc-e2e/bin/nix-grpc-e2e', 'farm::serial::', '--test-threads=1', '--nocapture']' returned non-zero exit status 101.
       For full logs, run:
         nix log /nix/store/skp2b29jgbk8aba7jliszbqayr5px86h-vm-test-run-nix-grpc-farm.drv