these 10 derivations will be built:
  /nix/store/ccq4zipc7xp2b9lqgycsh561k0cn3pjk-system-units.drv
  /nix/store/8k4znrwhavdmmaxi7df3zws2hhimxv2n-etc.drv
  /nix/store/hlvwnwlg7zlfpcsnqjin223i0zfn2q70-activate.drv
  /nix/store/3i2nmgbbcxy6i8cccml68130sli7qfqy-nixos-system-machine-test.drv
  /nix/store/4wdyjvp6acr36n7x8871mk6ddgq67lvd-closure-info.drv
  /nix/store/z417wjvq5ifc2bwpr8xgpg2r04ylilma-run-nixos-vm.drv
  /nix/store/b3z94xy9v9qml3268ncagknm5ydc3w9j-nixos-vm.drv
  /nix/store/y29s8j8rwwmmf3hrksba6ra4b0ych76n-driverConfiguration.json.drv
  /nix/store/bm1kv2frqglc86ihzvzx9j5kdnb4jk3l-nixos-test-driver-systemd-nsresourced-mountfsd.drv
  /nix/store/b2gpy45sf1bv5i352awpsqsw13zp0b15-vm-test-run-systemd-nsresourced-mountfsd.drv
error: Cannot build '/nix/store/b2gpy45sf1bv5i352awpsqsw13zp0b15-vm-test-run-systemd-nsresourced-mountfsd.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ps3y6bsz7lgb9915p26bs8qbncgqdrx8-vm-test-run-systemd-nsresourced-mountfsd
       Last 25 log lines:
       > machine # [   17.495307] systemd[1]: Starting Namespace Resource Manager...
       > machine # [   17.543073] systemd-nsresourced[834]: Not setting up BPF subsystem, as functionality has been disabled at compile time.
       > machine # [   17.548711] systemd[1]: Started Namespace Resource Manager.
       > machine: (finished: must succeed: varlinkctl introspect /run/systemd/userdb/io.systemd.NamespaceResource, in 0.14 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/81ag9nxz1flw3xjkv1vvqg8y2ipx2ins-python3-3.14.7/bin/python3.14)
       > machine # [2026-10-17T02:41:49Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-17T02:41:49Z INFO  virtiofsd] Client disconnected, shutting down
       > machine # [2026-10-17T02:41:49Z INFO  virtiofsd] Client disconnected, shutting down
       > (finished: cleanup, in 0.12 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/b2gpy45sf1bv5i352awpsqsw13zp0b15-vm-test-run-systemd-nsresourced-mountfsd.drv