these 10 derivations will be built:
  /nix/store/l42kdi8817jpnzixpy8w25ganzmdnmi5-system-units.drv
  /nix/store/3r4r40f6zchlx6j3mpi96c6j3mxhr5dc-etc.drv
  /nix/store/r6450wi2k9q2fd5pkqpwz4qawpkx69z7-activate.drv
  /nix/store/nwp6pmn15fi69cn504bsm8avhvhz6rq8-nixos-system-machine-test.drv
  /nix/store/wcw83f6iq4yx19r94dh9hm982j8qsq0z-closure-info.drv
  /nix/store/z69c1yfp90jvr9r8zbrhrxk5r06n451j-run-nixos-vm.drv
  /nix/store/xv1d8s6iq4i7yxv42n7cg2w5ilzfhwx3-nixos-vm.drv
  /nix/store/prr3c5dgm4x06ivcv8z8awg03k75mlpp-driverConfiguration.json.drv
  /nix/store/9k4zicwph0nk2qq3limsarwr7062mq1m-nixos-test-driver-systemd-nsresourced-mountfsd.drv
  /nix/store/9ljc4kv08myc60lxrj25sfayg3sqyy56-vm-test-run-systemd-nsresourced-mountfsd.drv
error: Cannot build '/nix/store/9ljc4kv08myc60lxrj25sfayg3sqyy56-vm-test-run-systemd-nsresourced-mountfsd.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/z3dbdbgvyxg525x9i4fbdxs532db1qki-vm-test-run-systemd-nsresourced-mountfsd
       Last 25 log lines:
       > machine # [   18.867269] systemd[1]: Starting Namespace Resource Manager...
       > machine # [   18.923317] systemd-nsresourced[836]: Not setting up BPF subsystem, as functionality has been disabled at compile time.
       > machine # [   18.932131] systemd[1]: Started Namespace Resource Manager.
       > machine: (finished: must succeed: varlinkctl introspect /run/systemd/userdb/io.systemd.NamespaceResource, in 0.16 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-aarch64: terminating on signal 15 from pid 39 (/nix/store/lq2fsnmg0q3y0vlxn91w8s8wvj1m6fld-python3-3.14.8/bin/python3.14)
       > machine # [2026-10-24T03:02:07Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-24T03:02:07Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-24T03:02:07Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.62 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/9ljc4kv08myc60lxrj25sfayg3sqyy56-vm-test-run-systemd-nsresourced-mountfsd.drv