these 10 derivations will be built:
  /nix/store/cn2fqr64s75ipg1pqac4ahi4azsxxblp-system-units.drv
  /nix/store/v7ygq3lxirxh3lv78vpb04vfych8w6sn-etc.drv
  /nix/store/9av9qwh5vphmvfz7sqp6zxai7yargjgm-activate.drv
  /nix/store/xlm3i6vpf5hcw0iispb24b55x8ril03n-nixos-system-machine-test.drv
  /nix/store/g85qq2v1013ld5n30lq557is8w1nzwp4-closure-info.drv
  /nix/store/2p01q6i2y3z8f9cpqfagpjz1130vwnkc-run-nixos-vm.drv
  /nix/store/n21cyal9iadznrmmx2760sdllxh94xp8-nixos-vm.drv
  /nix/store/95rr83plvnz317x6qr8zapl973n81490-driverConfiguration.json.drv
  /nix/store/2s4534p4fwv1y2fm2ppzjk85glg13mjc-nixos-test-driver-systemd-nsresourced-mountfsd.drv
  /nix/store/ch4m78p5css83pbb05py00q3h851i528-vm-test-run-systemd-nsresourced-mountfsd.drv
error: Cannot build '/nix/store/ch4m78p5css83pbb05py00q3h851i528-vm-test-run-systemd-nsresourced-mountfsd.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/apij25zprdfgagwv6axdj6wq7vaksl6l-vm-test-run-systemd-nsresourced-mountfsd
       Last 25 log lines:
       > machine # [   12.747830] systemd[1]: Starting Namespace Resource Manager...
       > machine # [   12.778460] systemd-nsresourced[839]: Not setting up BPF subsystem, as functionality has been disabled at compile time.
       > machine # [   12.779942] systemd[1]: Started Namespace Resource Manager.
       > machine: (finished: must succeed: varlinkctl introspect /run/systemd/userdb/io.systemd.NamespaceResource, in 0.09 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 # [2026-10-17T02:48:38Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-17T02:48:38Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-17T02:48:38Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.13 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/ch4m78p5css83pbb05py00q3h851i528-vm-test-run-systemd-nsresourced-mountfsd.drv