these 10 derivations will be built:
  /nix/store/77pjjxpx046kw46xmpg0xyjqxrrpv8n6-system-units.drv
  /nix/store/p4smqjllb5chff582ji2gc8jqvi80c7i-etc.drv
  /nix/store/72hnpg6lfy6jagkjkk2lvcn75vwnab6s-activate.drv
  /nix/store/3jbhnycxakydxzdwdygas6qxx7ql8y33-nixos-system-machine-test.drv
  /nix/store/si3n34nmqf0snr66l0k5cicczwzhzsjk-closure-info.drv
  /nix/store/cpl2pq93rp7fd0g5506bmr58p1kcv9px-run-nixos-vm.drv
  /nix/store/ah8wp6xxks4789xbzlrqw425zg8zbgjp-nixos-vm.drv
  /nix/store/p176x0fm9wbk5l2krjkhxky3j9353w18-driverConfiguration.json.drv
  /nix/store/xcpc6bwa5wmapznwl461cwlganc6svkj-nixos-test-driver-systemd-nsresourced-mountfsd.drv
  /nix/store/6pxdbdfxki1as8qzd4ywn826a309c7yz-vm-test-run-systemd-nsresourced-mountfsd.drv
error: Cannot build '/nix/store/6pxdbdfxki1as8qzd4ywn826a309c7yz-vm-test-run-systemd-nsresourced-mountfsd.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/vj2fhzykcrhd9yxcbb8vbhfvnrmkrs82-vm-test-run-systemd-nsresourced-mountfsd
       Last 25 log lines:
       > machine # [   13.274106] systemd[1]: Starting Namespace Resource Manager...
       > machine # [   13.309194] systemd-nsresourced[841]: Not setting up BPF subsystem, as functionality has been disabled at compile time.
       > machine # [   13.312847] systemd[1]: Started Namespace Resource Manager.
       > machine: (finished: must succeed: varlinkctl introspect /run/systemd/userdb/io.systemd.NamespaceResource, in 0.10 seconds)
       > machine: must succeed: unshare --user varlinkctl --exec call --push-fd=/proc/self/ns/user /run/systemd/userdb/io.systemd.NamespaceResource io.systemd.NamespaceResource.AllocateUserRange '{"name":"nixos-test","size":65536,"userNamespaceFileDescriptor":0}' -- cat /proc/self/uid_map
       > machine # Method call io.systemd.NamespaceResource.AllocateUserRange() failed: io.systemd.NamespaceResource.UserNamespaceInterfaceNotSupported
       > machine: output: {}
       >
       > !!! Test "nsresourced serves its varlink interface and delegates a user namespace" failed with error: "command `unshare --user varlinkctl --exec call --push-fd=/proc/self/ns/user /run/systemd/userdb/io.systemd.NamespaceResource io.systemd.NamespaceResource.AllocateUserRange '{"name":"nixos-test","size":65536,"userNamespaceFileDescriptor":0}' -- cat /proc/self/uid_map` failed (exit code 1)"
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 14, in <module>
       > !!!     machine.succeed(
       > !!! 
       > !!! RequestedAssertionFailed: command `unshare --user varlinkctl --exec call --push-fd=/proc/self/ns/user /run/systemd/userdb/io.systemd.NamespaceResource io.systemd.NamespaceResource.AllocateUserRange '{"name":"nixos-test","size":65536,"userNamespaceFileDescriptor":0}' -- cat /proc/self/uid_map` failed (exit code 1)
       > cleanup
       > kill QemuMachine (pid 45)
       > machine # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/lb41b0anx1f98y9y5s9mdv97gjgsq740-python3-3.14.7/bin/python3.14)
       > machine # [2026-10-19T03:04:46Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-19T03:04:46Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-19T03:04:46Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.17 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/6pxdbdfxki1as8qzd4ywn826a309c7yz-vm-test-run-systemd-nsresourced-mountfsd.drv