these 3 derivations will be built:
  /nix/store/y7rv1pmcgxyz6403fidxs53gxza46mrn-driverConfiguration.json.drv
  /nix/store/kixc1v64n29w2sxnf3ji45yh3mj4ikby-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/nmqbs7yn6csy7j74kz7gpal6b3saf70i-vm-test-run-nix-grpc-farm.drv
Failed to find a machine for remote build!
derivation: nmqbs7yn6csy7j74kz7gpal6b3saf70i-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], [])