these 7 derivations will be built:
  /nix/store/jlcaq1bvxzms38m2c6v6asgqglczr59j-manifest.json.drv
  /nix/store/pl18capy5w38b3vybk55w7a6zbsqkkad-nixos-system-machine-test.drv
  /nix/store/l13xvkfdm1sx0z10bn7py4k0c9rzkiz0-closure-info.drv
  /nix/store/zrgnw8vx0mwzl6nlf0d4m3ivv3kmx458-run-nixos-vm.drv
  /nix/store/q6n0rqdhw1n3x05xpywqlb7yay0m6x4a-nixos-vm.drv
  /nix/store/a773nj21zmrbvx2cyvcwq0azn763m2df-nixos-test-driver-sops-age-keys.drv
  /nix/store/r4iigas9vm41k79vpvcicg5k95fcpvr0-vm-test-run-sops-age-keys.drv
Failed to find a machine for remote build!
derivation: r4iigas9vm41k79vpvcicg5k95fcpvr0-vm-test-run-sops-age-keys.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], [])
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy