these 3 derivations will be built:
  /nix/store/7m9fvrr77c43pxn64ipd87qs9rpr222s-driverConfiguration.json.drv
  /nix/store/vxyqalf4nrg8psiyyisp2sx6gl1883d8-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/4ik9hyiwydq0kbc7qpd5wn3r7a8d3hm7-vm-test-run-nix-grpc-farm.drv
Failed to find a machine for remote build!
derivation: 4ik9hyiwydq0kbc7qpd5wn3r7a8d3hm7-vm-test-run-nix-grpc-farm.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], [])