these 24 derivations will be built:
  /nix/store/aqw0rvzmk90nd0cbqvykwiv2rwl0v4zr-system-path.drv
  /nix/store/54hrd25f4sri32s59kj4n9nzkrsv5lf6-dbus-1.drv
  /nix/store/2rbsrxgck8si1gbkdzymbjb3v9yyyxkk-X-Restart-Triggers-dbus-broker.drv
  /nix/store/1cdmnvl3bpj4zsf1y6gc86z3lqqbh7fh-unit-dbus-broker.service.drv
  /nix/store/pdfa2nvdlqi1mpl15502ib04imqg2d7z-unit-tincd-mesh.service.drv
  /nix/store/0pyb1m5g0i3fgr3np2y1cm4c685vzhjg-system-units.drv
  /nix/store/jw4z4f1shq9cdlp4x5grgskbkr26lb3c-unit-dbus-broker.service.drv
  /nix/store/d3yfm3p1d930yb7fnj2y7wnjhssbnkpl-user-units.drv
  /nix/store/8sxvmllbb8j38h3z398mw1725qzhxi19-etc.drv
  /nix/store/mrx6yrkkg5zvpgiwywk1igfcxc5c3fwd-activate.drv
  /nix/store/p9s6zsgcaslqznmmi7byvi207z5w3api-nixos-system-beta-test.drv
  /nix/store/gjf9c4n9d8x41hx98bskzc2vzyy8c3gg-closure-info.drv
  /nix/store/4ffl8ml8j64c01cgvd8s59jsym6jggl9-run-nixos-vm.drv
  /nix/store/3zk3zxyc8jkmawnk4cm6x0bmspl975lb-nixos-vm.drv
  /nix/store/wfd08njf1gyhh0rj9v7h8fpw1i6lbkw1-system-units.drv
  /nix/store/q1kak8x45dnq2rxx733h79cncapnin6g-etc.drv
  /nix/store/jarzlkin7349agkimk925a9kz7myf7zs-activate.drv
  /nix/store/d980k1rppdwdz9n42gyz33ap1nbhkk0p-nixos-system-alpha-test.drv
  /nix/store/4vkplx17crcl1xmdcf40jld9s1rphfq3-closure-info.drv
  /nix/store/f6wzb9wvvhfi75dwy5q3xshbrfn8idnr-run-nixos-vm.drv
  /nix/store/msggc65na5sh428lk6pwzcxa0rwpj8xc-nixos-vm.drv
  /nix/store/hnzvsgdmnjvhx4j8fwbxlzh8gnw018zr-driverConfiguration.json.drv
  /nix/store/dqa771r2p84vjy5w7yzbrrkhn9b9v13k-nixos-test-driver-tincd-systemd.drv
  /nix/store/xq6ascdjwqxfj7idk8j9azjr44vh2mnx-vm-test-run-tincd-systemd.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
Failed to find a machine for remote build!
derivation: xq6ascdjwqxfj7idk8j9azjr44vh2mnx-vm-test-run-tincd-systemd.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], [])