these 2 derivations will be built:
  /nix/store/blxgc2dqdvp7wj0a2s9g6p404nsgh0m0-rootfs-ubuntu-26_04.drv
  /nix/store/szi4m1a9lvwclqrnq5x9jqws4mhawic0-container-test-ubuntu-26-04-empty-config.drv
error: build of '/nix/store/szi4m1a9lvwclqrnq5x9jqws4mhawic0-container-test-ubuntu-26-04-empty-config.drv' on 'grpc://farm.numtide.com:50051?client-cert=/run/secrets/vars/per-machine/bld1/nix-farm-ci/crt&client-key=/run/secrets/vars/per-machine/bld1/nix-farm-ci/key&connect-timeout=22&system=aarch64-linux' failed: Cannot build '/nix/store/szi4m1a9lvwclqrnq5x9jqws4mhawic0-container-test-ubuntu-26-04-empty-config.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nmbza2dx1qg4hpkrifwlqna9n7xrh11w-container-test-ubuntu-26-04-empty-config
       Last 25 log lines:
       > [ubuntu-26-04-empty-config] 
       > [ubuntu-26-04-empty-config]
       > [ubuntu-26-04-empty-config] Ubuntu 26.04 LTS ubuntu pts/0
       > [ubuntu-26-04-empty-config]
       > ubuntu-26-04-empty-config: waiting for unit 'nix-daemon.socket'
       > (finished: waiting for unit 'nix-daemon.socket', in 0.02 seconds)
       > (finished: Installing Nix via nix-installer, in 3.54 seconds)
       > [3.5s] Nix installation complete
       > ubuntu-26-04-empty-config: Copying profile /nix/store/anvnvqmp52wv43nn5nvsw7zki617r0f9-system-manager to container
       > Copying 143 store paths...
       > (finished: Copying profile /nix/store/anvnvqmp52wv43nn5nvsw7zki617r0f9-system-manager to container, in 2.18 seconds)
       > [2.2s] Profile copy complete
       > [7.8s] All containers ready
       > To attach to container ubuntu-26-04-empty-config run on the same machine that runs the test:
       >   sudo nsenter --target 55 --mount --uts --ipc --net --pid --cgroup -- /usr/bin/env PATH=/run/current-system/sw/bin:/nix/var/nix/profiles/default/bin:/usr/sbin:/sbin:/usr/bin:/bin:/usr/local/sbin:/usr/local/bin /bin/bash 
       > ubuntu-26-04-empty-config: waiting for unit 'multi-user.target'
       > (finished: waiting for unit 'multi-user.target', in 0.02 seconds)
       > subtest: etcFiles.json contains only system-manager infrastructure
       > ubuntu-26-04-empty-config: must succeed: cat /nix/store/anvnvqmp52wv43nn5nvsw7zki617r0f9-system-manager/etcFiles/etcFiles.json
       > (finished: must succeed: cat /nix/store/anvnvqmp52wv43nn5nvsw7zki617r0f9-system-manager/etcFiles/etcFiles.json, in 0.01 seconds)
       > (finished: subtest: etcFiles.json contains only system-manager infrastructure, in 0.01 seconds)
       > subtest: services.json contains only system-manager infrastructure
       > ubuntu-26-04-empty-config: must succeed: cat /nix/store/anvnvqmp52wv43nn5nvsw7zki617r0f9-system-manager/services/services.json
       > (finished: must succeed: cat /nix/store/anvnvqmp52wv43nn5nvsw7zki617r0f9-system-manager/services/services.json, in 0.01 seconds)
       > Test "services.json contains only system-manager infrastructure" failed with error: "Empty config should not produce services beyond infrastructure: {'userborn-import-legacy.service'}"
       For full logs, run:
         nix log /nix/store/szi4m1a9lvwclqrnq5x9jqws4mhawic0-container-test-ubuntu-26-04-empty-config.drv
error: Cannot build '/nix/store/szi4m1a9lvwclqrnq5x9jqws4mhawic0-container-test-ubuntu-26-04-empty-config.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/nmbza2dx1qg4hpkrifwlqna9n7xrh11w-container-test-ubuntu-26-04-empty-config