these 42 derivations will be built:
  /nix/store/16l661agzq7znh4a7rk9236mb31azjfy-nix.conf.drv
  /nix/store/0j8psckbrbwgiw9bwb3sk4ninjww5560-X-Restart-Triggers-nix-daemon.drv
  /nix/store/4vjxaza8sq1qdg699xkv2crdvmv4pv01-unit-nix-grpc-daemon.service.drv
  /nix/store/m21mnhp2ay8mfci2h9w12f4i0igwf1ha-nix.conf.drv
  /nix/store/fp0rjr2739l3vkm4w3qslhi2n4d4af95-X-Restart-Triggers-nix-daemon.drv
  /nix/store/i32icgwhjyhjn136sngc27wg12756qhw-unit-nix-daemon.service.drv
  /nix/store/j4rxjrzwl2ww5h4c4gq1i0hqb02mnsk9-system-units.drv
  /nix/store/hsf341l8cjx2pzgqrm7wz3aflg38ks81-etc.drv
  /nix/store/3bxq4q90j7hkyiw2ymfxs0h9r1izlvji-activate.drv
  /nix/store/0xdjdqfasi7k8w8pgaqgm403lmpc6310-nixos-system-worker2-test.drv
  /nix/store/vgcx4rb8nsyxrwk8lrxwkrh9isafh38m-unit-nix-grpc-daemon.service.drv
  /nix/store/nvkqpwy6kanjhqf7kyvg80w4yhlm0pgc-system-units.drv
  /nix/store/ad6qy4mm42sb5r8802pxwp01fgds5hhw-etc.drv
  /nix/store/jr0nw72w8hjbrb2zjd1lq7r0zq2m4n57-activate.drv
  /nix/store/mn50fi0aqwfg9csi26xappsg1w94azs8-nixos-system-worker2-test.drv
  /nix/store/x853q1nj6agv7sv46wa75x2qbdvxz5hc-closure-info.drv
  /nix/store/14x9qrcxl8b7k7ic979wpzx3lldrv8zd-run-nixos-vm.drv
  /nix/store/0kxkgdmqj3w7iz854lvspskvd4v5vjy2-nixos-vm.drv
  /nix/store/d433vpdlb1ybanrf31miq2awwzwff5jv-nix.conf.drv
  /nix/store/3gsax0xrml3s9lfcxr6krjsp7il7i5ci-X-Restart-Triggers-nix-daemon.drv
  /nix/store/4m0bfpdj8kn91ixp64v2m7cg92ga2p96-unit-nix-daemon.service.drv
  /nix/store/qmmwipf6r3k6gyraivv5mri8wkh638zb-unit-nix-daemon.service.drv
  /nix/store/v0kn6rbc3j8b4krbzghv3c478x49a1in-unit-nix-grpc-daemon.service.drv
  /nix/store/q8zgcm9ycmhc42q2yzm384302n0693j0-system-units.drv
  /nix/store/przkzfxp4myzcinzc81d6mxjcmsrbmd7-etc.drv
  /nix/store/7y6ch038a209qfqay9il00p75ksp9p0w-activate.drv
  /nix/store/grbidq7jqx2yn6s7i7zqv3rx0i6acgs7-nixos-system-worker1-test.drv
  /nix/store/b7zs82qk4xdl2gq71mcsr3c83cpl1iwr-closure-info.drv
  /nix/store/c4qwf2872smayqc3idjgx50l7v3b9ihs-run-nixos-vm.drv
  /nix/store/5g6iw7kj92hn2lh67himzvqgrfv4ffrx-nixos-vm.drv
  /nix/store/r832i1h9z5d5z4c96f22z6n9jv16wals-system-units.drv
  /nix/store/xqx7bh1d799ckizzq5r5yl1k64wz9iwf-etc.drv
  /nix/store/f9m7m223xql3qlj9byjk9rpviykci8ay-activate.drv
  /nix/store/gyp6d3jz7lkml562wk2iqa1sbqacrqaj-nixos-system-client-test.drv
  /nix/store/j2zjx4h7pykhk29bdz45rhbkw1nv1mis-closure-info.drv
  /nix/store/b453ickfhsy5as20fakn22sw2r6sjr6r-run-nixos-vm.drv
  /nix/store/b4mwfc74vz4751b6mcpwp8zwa17zgfig-nixos-vm.drv
  /nix/store/n70xsd8v2czxq85724r5y5mabgp6zy02-nix-grpc-e2e.drv
  /nix/store/mn427623jwfwx4n1psfmn78kjfq1ddjv-test-script.drv
  /nix/store/il4i18m3djjgcfm2zq28jbx5l0sg543j-driverConfiguration.json.drv
  /nix/store/6zcn5gxkxv5apcgpn9c327kihpj4a805-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/nw9682rmdl7aaa2nys9m6r6ynribxnbf-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/nw9682rmdl7aaa2nys9m6r6ynribxnbf-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/837cnnq7wkxrl1paxzql3i6ngv3d24c2-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       >     worker1:  ssh -o User=root vsock-mux//build/tmpshdlddw1/worker1_host.socket
       >     worker2:  ssh -o User=root vsock-mux//build/tmpshdlddw1/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/hgh6bdm48cnkzdv3ahvrdswdd0azc31a-nixos-test-driver-1.1/bin/.nixos-test-driver-wrapped", line 9, in <module>
       >     sys.exit(main())
       >              ~~~~^^
       >   File "/nix/store/hgh6bdm48cnkzdv3ahvrdswdd0azc31a-nixos-test-driver-1.1/lib/python3.14/site-packages/test_driver/__init__.py", line 194, in main
       >     driver.run_tests()
       >     ~~~~~~~~~~~~~~~~^^
       >   File "/nix/store/hgh6bdm48cnkzdv3ahvrdswdd0azc31a-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/hgh6bdm48cnkzdv3ahvrdswdd0azc31a-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/f8vj8m6fpgczb0ihddfq7hwg93g174dq-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/nw9682rmdl7aaa2nys9m6r6ynribxnbf-vm-test-run-nix-grpc-farm.drv