these 19 derivations will be built:
  /nix/store/0zh2bk94l34isw828rgh5zq28ar6mccj-user-units.drv
  /nix/store/klzsp35prh1559pdg4kkkyqp7hfd1kk3-etc.drv
  /nix/store/qrkqdhmrlgmvlrfvfd1mjf2xy1ah00z4-activate.drv
  /nix/store/ii3zq204346y5nxp4zsl7n9lgmba1dqy-nixos-system-client-test.drv
  /nix/store/x49yhrcwhfvl871yx9qx8x5vb8kxhska-closure-info.drv
  /nix/store/7f5fpkkzafikhq74id13fsnlb6xkjff9-run-nixos-vm.drv
  /nix/store/163lfpkcxrqj5byl2x2p0jjza50hkz21-nixos-vm.drv
  /nix/store/c7c3igrfvfjx78lik9pcj69m50zvma4r-unit-nginx.service.drv
  /nix/store/fg5ygjn48idqk8n8k6s4lz3phg3kb080-unit-firewall.service.drv
  /nix/store/bc22h5j86sylzraig7pipcc5755g31ig-system-units.drv
  /nix/store/bknp9hl7vml0j0jw59z5aiqnm12clryc-etc.drv
  /nix/store/khcaw5y2qgr4s8yd4fysknbcdw473s4h-activate.drv
  /nix/store/5agv061ww87q04agypwgpyl9yrgq513n-nixos-system-server-test.drv
  /nix/store/p17s092jkvviw6dldc6iqwxx8kmkjw45-closure-info.drv
  /nix/store/ag1mz143b76brpamqhks5rx92cwcpcrr-run-nixos-vm.drv
  /nix/store/3q5a3bjwm2law88m470z24pldkk0drwq-nixos-vm.drv
  /nix/store/vbn5ya8cl3g9541p69m9712zkwyy2z2z-driverConfiguration.json.drv
  /nix/store/nwy58d09m81p8gvxsz91ww1yi00mvhy7-nixos-test-driver-systemd-nspawn.drv
  /nix/store/cxxiqfgzbkp5fp6bkqvv9vi5k48hb3j9-vm-test-run-systemd-nspawn.drv
Failed to find a machine for remote build!
derivation: cxxiqfgzbkp5fp6bkqvv9vi5k48hb3j9-vm-test-run-systemd-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], [])