these 4 derivations will be built:
  /nix/store/7fzpqjg5cx2ng002saj96s1a7ig9dqvq-test-script.drv
  /nix/store/2xm378dq1wkchj0xbvi9dcswxw428q96-driverConfiguration.json.drv
  /nix/store/pi09c5h9fazymm3dgk92pvz9rw0i8lg8-nixos-test-driver-nix-grpc-store-acme-substituter.drv
  /nix/store/8mzmldpzxczadd3ril5fnzhapcdizk9d-vm-test-run-nix-grpc-store-acme-substituter.drv
Failed to find a machine for remote build!
derivation: 8mzmldpzxczadd3ril5fnzhapcdizk9d-vm-test-run-nix-grpc-store-acme-substituter.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], [])