these 3 derivations will be built:
  /nix/store/x1v6ns8h5bb5dp0hci725cl8bxmlq84i-driverConfiguration.json.drv
  /nix/store/4z7p3sgrkx7l10n2a4p8kg5qdxjmayjv-nixos-test-driver-nix-grpc-farm.drv
  /nix/store/pn418fdpwlgjqk31b7a765pww14slqs5-vm-test-run-nix-grpc-farm.drv
Failed to find a machine for remote build!
derivation: pn418fdpwlgjqk31b7a765pww14slqs5-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], [])