these 40 derivations will be built:
  /nix/store/qa5if7bzic0blj503j2vfxsppi1v98nn-nix.conf.drv
  /nix/store/261d0c552w6346ff3kyjf3zsgivka53g-X-Restart-Triggers-nix-daemon.drv
  /nix/store/hxdwxl1fla5argbylk8iaw4gmqzsd1ak-unit-nix-daemon.service.drv
  /nix/store/iip2sf06miinr4ybdfmvj17gizvskpqd-unit-nix-grpc-daemon.service.drv
  /nix/store/2baf74c5qakd5n5w3z8cjzrnv8h75vqk-system-units.drv
  /nix/store/ygi3idpj439migfw4xvgyrrrqpxwqygj-etc.drv
  /nix/store/qmgjl4p847n10yq3sjlmckl03fypl6dc-activate.drv
  /nix/store/vgmnqwlbkjrrm9158vqn1b4365ddxxlq-unit-nix-grpc-daemon.service.drv
  /nix/store/4rfsgmq4i0l6qs31pl62c7a4v7l4myh9-system-units.drv
  /nix/store/rs4r5y44j7ym5w3b1rqqv17caxv9nm92-etc.drv
  /nix/store/912wqwb45bwklqkfbh3x6figwn7bv8r5-activate.drv
  /nix/store/x189xy8zqsb90k24hvkqjcqjmnpc59ix-nixos-system-worker2-test.drv
  /nix/store/r28pf3gd14yvj9jrr3836ygxz8y6cyqk-nixos-system-worker2-test.drv
  /nix/store/8dykv7i53dqnzlxpkxxqia75fjkn5zr9-closure-info.drv
  /nix/store/p6lxwyavqf3212jzh58vgqhmvmqdjnpz-run-nixos-vm.drv
  /nix/store/2mdil4115qsipr159hkf5ggjmhr8dpi4-nixos-vm.drv
  /nix/store/8ag7w4d8q89bflc5d0xp2nkflg7zy8la-nix.conf.drv
  /nix/store/5c7i9qch1ih0k7cvm0khhki5hpkbj4h9-X-Restart-Triggers-nix-daemon.drv
  /nix/store/47w0g94yylhlsvbz0rznw4hi85qqcpw6-unit-nix-daemon.service.drv
  /nix/store/4sz24bnp679rnzjxvbj8w7qj142x6x7j-nix.conf.drv
  /nix/store/df6g32c4r08mwaagdpr7ixga2vk5pn03-system-units.drv
  /nix/store/9g4dl2y4jnsdj7s4mgjb53mdvvpwfp25-etc.drv
  /nix/store/kbk851xcpfjirc27pb7z4gskpl57hm3g-activate.drv
  /nix/store/ccvcdqgd55lgbg1f0b2b6lq8jzrfk70l-nixos-system-client-test.drv
  /nix/store/65zw4vs7dv6kfzyzw4mmxm3xqzdcw13h-closure-info.drv
  /nix/store/jq3yb7w679vszqr1cwwimbkvgl8ppsb5-unit-nix-grpc-daemon.service.drv
  /nix/store/vknd4vdclmf0849ck9mhd4ijbgjp1y8n-X-Restart-Triggers-nix-daemon.drv
  /nix/store/pk5jb3ks6slbsdapf45yfgg5phpflp4y-unit-nix-daemon.service.drv
  /nix/store/afb31s8c8fz2ipsl92qyrnjx54fm53y0-system-units.drv
  /nix/store/v6r73jrwisps93dgwg4cs269w1klbrhl-etc.drv
  /nix/store/8mhb013c1ccxzxs19kbfvynw3hgxhqgj-activate.drv
  /nix/store/xs4vsrs45bg92ps3b38xlhbfla0k663z-nixos-system-worker1-test.drv
  /nix/store/d3piddnv8gqwzlsd3k1rjbx6wq8fh6lg-closure-info.drv
  /nix/store/vzvjgwx0dlsz76yg96g261iq7r8qzhq9-run-nixos-vm.drv
  /nix/store/nfjkchjfj34b94v05d69w7kbh5kra6xc-nixos-vm.drv
  /nix/store/nl2bq8137cyxx148m0q1zsd23c9mczcb-run-nixos-vm.drv
  /nix/store/yh092dc6cj7yvr5kgbsmgq9zpwvj14j1-nixos-vm.drv
  /nix/store/vqzinbkj6kykhfvgn398rn0sw8vidiwj-driverConfiguration.json.drv
  /nix/store/9f2yfcffzmaxp6328mf0m3519nwa7nw5-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/rj15a9lylyw8qmb3d5diyki6gsxll3pm-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/rj15a9lylyw8qmb3d5diyki6gsxll3pm-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/x56pmpxarp7v7fzqklpd3gd53dsgbxws-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       >     worker1:  ssh -o User=root vsock-mux//build/tmpbfqorva7/worker1_host.socket
       >     worker2:  ssh -o User=root vsock-mux//build/tmpbfqorva7/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/2bhsk8wfsfr8v5d88sjwrmfb3mv2fxwa-nixos-test-driver-1.1/bin/.nixos-test-driver-wrapped", line 9, in <module>
       >     sys.exit(main())
       >              ~~~~^^
       >   File "/nix/store/2bhsk8wfsfr8v5d88sjwrmfb3mv2fxwa-nixos-test-driver-1.1/lib/python3.14/site-packages/test_driver/__init__.py", line 194, in main
       >     driver.run_tests()
       >     ~~~~~~~~~~~~~~~~^^
       >   File "/nix/store/2bhsk8wfsfr8v5d88sjwrmfb3mv2fxwa-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/2bhsk8wfsfr8v5d88sjwrmfb3mv2fxwa-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/lb41b0anx1f98y9y5s9mdv97gjgsq740-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/jb6s1xqgf2zgj37kln7yiv9cbc2c76wn-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/rj15a9lylyw8qmb3d5diyki6gsxll3pm-vm-test-run-nix-grpc-farm.drv