these 3 derivations will be built:
  /nix/store/m4sbjq8mgllpvjcyhilmhjnbj6gdnbbi-driverConfiguration.json.drv
  /nix/store/3slb9g0gn03nvdf302pgzs2sq4q7z0jk-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/cf37w9r1akrwyigcaiga528v4a84kan4-vm-test-run-nix-grpc-farm.drv
Failed to find a machine for remote build!
derivation: cf37w9r1akrwyigcaiga528v4a84kan4-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], [])