this derivation will be built:
  /nix/store/0afxxgj3cgnk3znfks9mdgwljwwc91j8-vm-test-run-nix-grpc-farm-k3s.drv
error: Cannot build '/nix/store/0afxxgj3cgnk3znfks9mdgwljwwc91j8-vm-test-run-nix-grpc-farm-k3s.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/q6fxg344f1af2r31q9b33n6dqfawddwp-vm-test-run-nix-grpc-farm-k3s
       Last 25 log lines:
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 2026-09-19T21:27:48.207256Z  WARN harmonia_gc: no private mount namespace: setting up a private mount namespace: EPERM: Operation not permitted
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 12.54 GiB already free, nothing to do
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 2026-09-19T21:27:58.214428Z  WARN harmonia_gc: no private mount namespace: setting up a private mount namespace: EPERM: Operation not permitted
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 12.54 GiB already free, nothing to do
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 2026-09-19T21:28:08.221814Z  WARN harmonia_gc: no private mount namespace: setting up a private mount namespace: EPERM: Operation not permitted
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 12.54 GiB already free, nothing to do
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 2026-09-19T21:28:18.229154Z  WARN harmonia_gc: no private mount namespace: setting up a private mount namespace: EPERM: Operation not permitted
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 12.54 GiB already free, nothing to do
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 2026-09-19T21:28:28.235282Z  WARN harmonia_gc: no private mount namespace: setting up a private mount namespace: EPERM: Operation not permitted
       > machine # [pod/nix-grpc-farm-worker-x86-64-linux-5cdbdb595-v2mbn/gc] 12.54 GiB already free, nothing to do
       > machine # No resources found in farm namespace.
       > !!! Test "chart deploys and workers become Ready" failed with error: "action timed out after 420.55 seconds (timeout=420.0)"
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 19, in <module>
       > !!!     machine.wait_until_succeeds(kubectl + "rollout status deployment nix-grpc-farm-scheduler --timeout=10s", timeout=420)
       > !!! 
       > !!! RequestedAssertionFailed: action timed out after 420.55 seconds (timeout=420.0)
       > cleanup
       > kill QemuMachine (pid 45)
       > machine # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/b5bpi6zfajzzrwwpgba2q6li3nnya4bs-python3-3.14.7/bin/python3.14)
       > (finished: cleanup, in 1.18 seconds)
       > additionally exposed symbols:
       >     machine,
       >     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/0afxxgj3cgnk3znfks9mdgwljwwc91j8-vm-test-run-nix-grpc-farm-k3s.drv