this derivation will be built:
  /nix/store/g2vvp8dva6qr8gak5z5mykm3x2qmlgfv-vm-test-run-nix-grpc-farm.drv
error: Cannot build '/nix/store/g2vvp8dva6qr8gak5z5mykm3x2qmlgfv-vm-test-run-nix-grpc-farm.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/y1b3jfcv35k75fvz51zmaxvljw37kxln-vm-test-run-nix-grpc-farm
       Last 25 log lines:
       > kill QemuMachine (pid 49)
       > client # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)
       > client # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > client # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > client # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > kill QemuMachine (pid 50)
       > lb # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)
       > lb # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > lb # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > lb # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > kill QemuMachine (pid 51)
       > worker1 # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)
       > worker1 # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > worker1 # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > worker1 # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > kill QemuMachine (pid 52)
       > worker2 # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/d64q19q1xjdwfhqx6czvrjgrhq0n3lcc-python3-3.14.7/bin/python3.14)
       > worker2 # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > worker2 # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > worker2 # [2026-09-23T10:33:26Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.79 seconds)
       > 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
       For full logs, run:
         nix log /nix/store/g2vvp8dva6qr8gak5z5mykm3x2qmlgfv-vm-test-run-nix-grpc-farm.drv