1these 11 derivations will be built:2 /nix/store/b0ldk792wy9mldncpgqsjmvww4qcby7y-system-units.drv3 /nix/store/pghkmrpz5p3z0fhfr9n4hcyzgiavggb6-etc.drv4 /nix/store/vm2whg8q799gimhlhd20ibybnda2vplh-activate.drv5 /nix/store/v0g8fffhh18drjn1nw5ykcdg0iyiy2l3-nixos-system-machine-test.drv6 /nix/store/gsrlcyy6d7glbkn2ll90b9zdn7x0f173-closure-info.drv7 /nix/store/h0sv346hdqfmkixpklsgyfz7j1h5k304-run-nixos-vm.drv8 /nix/store/rvsk3kl29dxc5inwp1b85pw5shj2f6ph-nixos-vm.drv9 /nix/store/z5njhq0srg5kgll5c84pgp5n3ibinbdc-test-script.drv10 /nix/store/9rxr9jv0c8797csz7phsjz5vxysaa8pb-driverConfiguration.json.drv11 /nix/store/pj3fnhlbirfj8hgmz4gb8fi4fs1f6vz0-nixos-test-driver-systemd-nsresourced-mountfsd.drv12 /nix/store/8wjsnw0xllrqg7crym7w847z49vp26xm-vm-test-run-systemd-nsresourced-mountfsd.drv13error: Cannot build '/nix/store/8wjsnw0xllrqg7crym7w847z49vp26xm-vm-test-run-systemd-nsresourced-mountfsd.drv'.14 Reason: builder failed with exit code 1.15 Output paths:16 /nix/store/j6x45k6dxihn38qwsasly2k5lxlkxacg-vm-test-run-systemd-nsresourced-mountfsd17 Last 25 log lines:18 > machine # [ 15.177995] systemd[1]: Starting Namespace Resource Manager...19 > machine # [ 15.209188] systemd-nsresourced[847]: Not setting up BPF subsystem, as functionality has been disabled at compile time.20 > machine # [ 15.213290] systemd[1]: Started Namespace Resource Manager.21 > machine: (finished: must succeed: varlinkctl introspect /run/systemd/userdb/io.systemd.NamespaceResource, in 0.09 seconds)22 > 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_map23 > machine # Method call io.systemd.NamespaceResource.AllocateUserRange() failed: io.systemd.NamespaceResource.UserNamespaceInterfaceNotSupported24 > machine: output: {}25 >26 > !!! 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)"27 > !!! Traceback (most recent call last):28 > !!! File "<string>", line 14, in <module>29 > !!! machine.succeed(30 > !!! 31 > !!! 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)32 > cleanup33 > kill QemuMachine (pid 45)34 > machine # qemu-system-x86_64: terminating on signal 15 from pid 39 (/nix/store/xahxrjs30p3mw0a42bqg9ikgkikskw8m-python3-3.14.8/bin/python3.14)35 > machine # [2026-10-20T03:15:14Z INFO virtiofsd] Client disconnected, shutting down36 > machine # [2026-10-20T03:15:14Z INFO virtiofsd] Client disconnected, shutting down37 > machine # [2026-10-20T03:15:14Z INFO virtiofsd] Client disconnected, shutting down38 > (finished: cleanup, in 0.16 seconds)39 > additionally exposed symbols:40 > machine,41 > vlan1,42 > 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_ssh43 For full logs, run:44 nix log /nix/store/8wjsnw0xllrqg7crym7w847z49vp26xm-vm-test-run-systemd-nsresourced-mountfsd.drv