these 25 derivations will be built:
  /nix/store/y17i9m6m52w8sdclli7v7sscp3ja772j-nixos-tmpfiles.d.drv
  /nix/store/iz6m13klblcajfiv2pm7156p9l0ha8cp-tmpfiles.d.drv
  /nix/store/zbdf78bg85rpr73vdhq9zi8rk9ba1kih-X-Restart-Triggers-systemd-tmpfiles-resetup.drv
  /nix/store/06smja06pa3qvbfk2v72hwlb5m2lb6s3-unit-systemd-tmpfiles-resetup.service.drv
  /nix/store/9pxv3jpr2dldwlh2kfy6xaj0d4rg86yc-system-path.drv
  /nix/store/3xkj8ggxsw78mglfh6d2k834nrnn7bsz-dbus-1.drv
  /nix/store/1ai926rfh7wfmvwjlh2q6whhyjgx1a2v-X-Restart-Triggers-dbus-broker.drv
  /nix/store/gf9pqcww97bbr638mgy6yjwyai08ss9p-test-script.drv
  /nix/store/jskcjsypjldxadp1ygx8s202maq0vxim-unit-dbus-broker.service.drv
  /nix/store/fipfpyp9dvfn43l0ha93i8ffp9sml7jw-user-units.drv
  /nix/store/fask77qxvbijzrf0xj8dz0q6vlrmfnsj-unit-machines.target.drv
  /nix/store/vps6ny7aydg54f389xdika99f45vbyr8-unit-dbus-broker.service.drv
  /nix/store/gc8691igrg8aga8ayrwjza06znv8iwan-system-units.drv
  /nix/store/k62h5hv18cx1fyf1wnrd690348yyh7zk-container-init.drv
  /nix/store/hdddikvfbgnfrm8ggpi51iblfpmiff2j-unit-testcontainer.nspawn.drv
  /nix/store/zy7zszcfwj7d981fagwg76xkssgqm8az-nspawn-units.drv
  /nix/store/q5n948i9vqylq4wic8vp8bln0p0pg730-etc.drv
  /nix/store/22jx5h0m56pzn0dsspplliyg1rr0isl7-activate.drv
  /nix/store/3zn3y7lgzaxkdbybk7lk5ris37aachj4-nixos-system-server-test.drv
  /nix/store/7kjk246197dlh87jakj982sxkwqxjy6g-closure-info.drv
  /nix/store/yc9jkbnp3v73w3vhlq0gh52swzxvc0x6-run-nixos-vm.drv
  /nix/store/izrbi4dn57skbmb4z65cd6zwx1pih1gi-nixos-vm.drv
  /nix/store/fc8c6jcmjcvwqv7b2n2my7ihh43xsq7h-driverConfiguration.json.drv
  /nix/store/1ja7gzqbh63way6ryp2xwb4vpf6bl39c-nixos-test-driver-nspawn.drv
  /nix/store/sv64v3ipmb40bap3fasqpwzra4q6m6pj-vm-test-run-nspawn.drv
Failed to find a machine for remote build!
derivation: sv64v3ipmb40bap3fasqpwzra4q6m6pj-vm-test-run-nspawn.drv
required (system, features): (aarch64-linux, [kvm, nixos-test])
1 available machines:
(systems, maxjobs, supportedFeatures, mandatoryFeatures)
([aarch64-darwin, x86_64-darwin], 8, [big-parallel, recursive-nix], [])
error: Cannot build '/nix/store/sv64v3ipmb40bap3fasqpwzra4q6m6pj-vm-test-run-nspawn.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zbbx1jz1274r14ldfs4j88a4vnw9q138-vm-test-run-nspawn
       Last 25 log lines:
       > server # [   13.559797] systemd[1]: Starting Permit User Sessions...
       > server # [   13.576528] systemd-logind[515]: Watching system buttons on /dev/input/event3 (QEMU Virtio Keyboard)
       > server # [   13.577803] systemd[1]: Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.
       > server # [   13.578862] systemd[1]: systemd-vconsole-setup.service: Deactivated successfully.
       > server # [   13.579857] systemd[1]: Stopped Virtual Console Setup.
       > server # [   13.589188] systemd-nspawn[687]: Note: in a future version of systemd-nspawn the default set of permitted socket address families will be restricted to AF_INET, AF_INET6 and AF_UNIX. Use --restrict-address-families= to configure the set of permitted socket address families, or set RestrictAddressFamilies= in a .nspawn file.
       > server # [   13.605208] systemd-nspawn[687]: Directory /var/lib/machines/testcontainer doesn't look like it has an OS tree (/usr/ directory is missing). Refusing.
       > server # [   13.608933] systemd[1]: Starting Virtual Console Setup...
       > server # [   13.617264] systemd[1]: systemd-nspawn@testcontainer.service: Main process exited, code=exited, status=1/FAILURE
       > server # [   13.629990] systemd[1]: systemd-nspawn@testcontainer.service: Failed with result 'exit-code'.
       > server # [   13.633102] systemd[1]: Failed to start Container testcontainer.
       > server # [   13.636993] systemd[1]: Reached target Virtual Machines and Containers.
       > !!! Traceback (most recent call last):
       > !!!   File "<string>", line 2, in <module>
       > !!!     server.wait_for_unit("systemd-nspawn@testcontainer.service")
       > !!! 
       > !!! RequestedAssertionFailed: unit "systemd-nspawn@testcontainer.service" reached state "failed"
       > cleanup
       > kill QemuMachine (pid 46)
       > server # qemu-system-aarch64: terminating on signal 15 from pid 39 (/nix/store/sfbjq7mllid60l3jvxw0q2gknqldyy2l-python3-3.14.6/bin/python3.14)
       > (finished: cleanup, in 0.16 seconds)
       > additionally exposed symbols:
       >     server,
       >     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/sv64v3ipmb40bap3fasqpwzra4q6m6pj-vm-test-run-nspawn.drv