1these 10 derivations will be built:2 /nix/store/1cxbar1i5sv4vkrkz4jayhcb1ylsd8n2-system-units.drv3 /nix/store/h7mikx888x98z8qn0lqdg77fym88kp75-etc.drv4 /nix/store/vb5kzl5njd7nxdhshpv08ijb1582jfpq-activate.drv5 /nix/store/w7yxqsrzhs0h6ki4s23bymh814v863hf-nixos-system-machine-test.drv6 /nix/store/hvkb7cl9f93rnfh9fzcbh26grgsgxrfa-closure-info.drv7 /nix/store/d3q91bkp3h5i30x6mgcsjajnjzy6c80y-run-nixos-vm.drv8 /nix/store/c52jdbp16abcgayzisnvnfm25xi2hq06-nixos-vm.drv9 /nix/store/dnxmnk9aad6ym3hbsz9gw1sfiqki19gr-driverConfiguration.json.drv10 /nix/store/maxjx4srq66iw7zw03gz5kw5fd5427dx-nixos-test-driver-systemd-nsresourced-mountfsd.drv11 /nix/store/80m48qg3n1ikrbxhbi2ccmb63q1az1p9-vm-test-run-systemd-nsresourced-mountfsd.drv12error: Cannot build '/nix/store/80m48qg3n1ikrbxhbi2ccmb63q1az1p9-vm-test-run-systemd-nsresourced-mountfsd.drv'.13 Reason: builder failed with exit code 1.14 Output paths:15 /nix/store/i7chnfxvya12i3djxama8wplyp5dily1-vm-test-run-systemd-nsresourced-mountfsd16 Last 25 log lines:17 > machine # [ 18.497199] systemd[1]: Starting Namespace Resource Manager...18 > machine # [ 18.544949] systemd-nsresourced[837]: Not setting up BPF subsystem, as functionality has been disabled at compile time.19 > machine # [ 18.551230] systemd[1]: Started Namespace Resource Manager.20 > machine: (finished: must succeed: varlinkctl introspect /run/systemd/userdb/io.systemd.NamespaceResource, in 0.14 seconds)21 > 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_map22 > machine # Method call io.systemd.NamespaceResource.AllocateUserRange() failed: io.systemd.NamespaceResource.UserNamespaceInterfaceNotSupported23 > machine: output: {}24 >25 > !!! 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)"26 > !!! Traceback (most recent call last):27 > !!! File "<string>", line 14, in <module>28 > !!! machine.succeed(29 > !!! 30 > !!! 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)31 > cleanup32 > kill QemuMachine (pid 45)33 > machine # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/81ag9nxz1flw3xjkv1vvqg8y2ipx2ins-python3-3.14.7/bin/python3.14)34 > machine # [2026-10-19T02:58:43Z INFO virtiofsd] Client disconnected, shutting down35 > machine # [2026-10-19T02:58:43Z INFO virtiofsd] Client disconnected, shutting down36 > machine # [2026-10-19T02:58:43Z INFO virtiofsd] Client disconnected, shutting down37 > (finished: cleanup, in 0.15 seconds)38 > additionally exposed symbols:39 > machine,40 > vlan1,41 > 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_ssh42 For full logs, run:43 nix log /nix/store/80m48qg3n1ikrbxhbi2ccmb63q1az1p9-vm-test-run-systemd-nsresourced-mountfsd.drv