these 16 derivations will be built:
  /nix/store/rrnsn5yy36jm9078xa9gla6yrzc6843m-system-units.drv
  /nix/store/kng5bf0v23fqx7h0mkm674avafyykqxn-etc.drv
  /nix/store/aldc9gaiigs42asirdssbl2gj69iyjiv-activate.drv
  /nix/store/avz96fcfwild3wx9hff7vhydlw1a99an-nixos-system-server-test.drv
  /nix/store/l2p0q384r6gzss8nrmh6bki6x5a8yk4y-closure-info.drv
  /nix/store/jhxgxwbkdhr5h2z33lschpfy2ysfgiyb-run-nixos-vm.drv
  /nix/store/ydv1by7nb09p96pxq6zciwa2lpwpp4sp-nixos-vm.drv
  /nix/store/gpr18lsbv1swwn98j8aj5kbfvsgapafn-etc.drv
  /nix/store/gy4bqahblra0h6yc3hh3sc3rhd9cc2rc-activate.drv
  /nix/store/bmyy133ij1csq535vrxiv56s9mrglf9i-nixos-system-client-test.drv
  /nix/store/7fvljxncn04wp5q0bn9ajcg3d3mgi9rb-closure-info.drv
  /nix/store/ky6scvbvdq6qianmb94mprsciv7yrkgn-run-nixos-vm.drv
  /nix/store/z9qf208xrcgivj8anamp8qy3psqh7lqp-nixos-vm.drv
  /nix/store/95a94pkyrv4k44q9cl1gz27l7h6y21c2-driverConfiguration.json.drv
  /nix/store/ryx5181j8m39wg628q4dx34ll497mscb-nixos-test-driver-systemd-nspawn.drv
  /nix/store/0h5dgp7xbpv3dha4wlrkvr35yi1xsdqd-vm-test-run-systemd-nspawn.drv
Failed to find a machine for remote build!
derivation: 0h5dgp7xbpv3dha4wlrkvr35yi1xsdqd-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], [])