these 38 derivations will be built:
  /nix/store/m62b26zxfdpssay4d76k3qg6c34s8byp-niks3-1.15.0-go-modules.drv
  /nix/store/i9g46hnyhkpip4h7870y9n5fw7ckpcdq-niks3-1.15.0.drv
  /nix/store/k1gzdq7jz07jv5hnx7fflf44g97skkq5-unit-nix-grpc-daemon.service.drv
  /nix/store/fj189fhk0afbm5vk9cpny6z21hkgkm7m-system-units.drv
  /nix/store/gn8d9qxkg5kbr6vsfs70j48b2bkq711g-etc.drv
  /nix/store/bf10zraraa1j2b2scy56dzpc99l40c0z-activate.drv
  /nix/store/zzar5svr2yszwypzlq9nnba02mrx1rif-nixos-system-worker1-test.drv
  /nix/store/nf49qlf383ld4454kdsl9aw2wrqcrq4y-closure-info.drv
  /nix/store/0xlkbkvsbnsg4bhx2wadcfcbf2bi371f-run-nixos-vm.drv
  /nix/store/z4hsszhcrbl6wy3b25swvxh2kjnmxj6c-niks3-server-1.15.0.drv
  /nix/store/kawwrqnpybv0fr4q52blmnr2j20izrz0-unit-niks3.service.drv
  /nix/store/8vg6l55v7qx7a8af56zp1ny67l7bpqv8-mock-oidc-server-0.1.0.drv
  /nix/store/ymlnsl00m3mln419r08vllqm2jmn74mg-unit-mock-oidc.service.drv
  /nix/store/yr9vi13nkbwrxrafq613a9jbhzcm1san-unit-niks3-gc.service.drv
  /nix/store/4r4jlsg5dqiqyl37ypnk530yrw82sg7f-system-units.drv
  /nix/store/w5j20hzb3l8cdnyb5m3xh1lwz4vfxzmp-etc.drv
  /nix/store/38186as2mhsa69vnjrw8j81mrhvg0yhw-activate.drv
  /nix/store/85cm3781wrk8jyvpqqi2i4k12d0xxmvl-unit-nix-grpc-daemon.service.drv
  /nix/store/mpngjdnmgxc7lxp48ralkrlc0b6mszs8-system-units.drv
  /nix/store/j98sp4hkyfysgq0h9pdzh4ij73wb2v65-etc.drv
  /nix/store/nqbjaj749lxh4qid7mfk60rzrs4f6niz-activate.drv
  /nix/store/5hwwybnxcgpkz4a90fgjzf01bxwwq36x-unit-nix-grpc-daemon.service.drv
  /nix/store/dg1lr8jizz70kwq94341fvgpraziwckr-system-units.drv
  /nix/store/qc0d1bbk6khwin2y6rpxjbj16sq82pw7-etc.drv
  /nix/store/xjlzi8g697lqig666c4nq3ppz58xghfz-activate.drv
  /nix/store/r19vdvnrhd3nm9w4lld8c6mhdskw2y1v-nixos-system-worker2-test.drv
  /nix/store/f66ljkyharxsglwbl0000vi78785ap4c-nixos-system-worker2-test.drv
  /nix/store/3vk2jl5v4dkiqr330j7c9mb6rzmg9vy7-closure-info.drv
  /nix/store/nrlzl3bxq55c8j3y4s0n9s2pi6595fis-run-nixos-vm.drv
  /nix/store/ibcnb8bz9p3cpn3d666l3d9q07m31i8k-nixos-vm.drv
  /nix/store/jc1398d30day0q77yq2wkhiqsinsasc8-nixos-system-lb-test.drv
  /nix/store/wjqbpapw1z4mv94msd5pw6b1sdvkkjnj-closure-info.drv
  /nix/store/l4mfzhhg0pa4h2k3x64iszzq5kr9wi0m-run-nixos-vm.drv
  /nix/store/jyi83npw5w91jfbvvsjd93ha70cb2764-nixos-vm.drv
  /nix/store/p71pz0f8bp2mr2csrjzsx5p2ljy2mgs2-nixos-vm.drv
  /nix/store/sax55bvbx2ijxq8nhm7g3priq6ay9r4n-driverConfiguration.json.drv
  /nix/store/dsqxqwnbpr16n3ixks9y6bz9fpzfyv1n-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/xd8cxzgcjirvy8ms7g82qcs8fw1q3ygq-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/xd8cxzgcjirvy8ms7g82qcs8fw1q3ygq-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zd391zy31kbs5x0y2psawqlylwg3921m-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       >     worker1:  ssh -o User=root vsock-mux//build/tmpidu8ke07/worker1_host.socket
       >     worker2:  ssh -o User=root vsock-mux//build/tmpidu8ke07/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/02c5vhnm42606hqnrlimcfd9x98n7zvn-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/xd8cxzgcjirvy8ms7g82qcs8fw1q3ygq-vm-test-run-nix-grpc-farm.drv