these 3 derivations will be built:
  /nix/store/jwh82171lyna88wprwi5hmmk5iyxcgya-driverConfiguration.json.drv
  /nix/store/gix7p0n1g44vp4qk4l32l6ghdynaqmf6-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/rfaj4162rhprmp1jr2s98d9za3xwb2hr-vm-test-run-nix-grpc-farm.drv
Failed to find a machine for remote build!
derivation: rfaj4162rhprmp1jr2s98d9za3xwb2hr-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], [])