these 7 derivations will be built:
  /nix/store/5jh06dxi808j7fw1bzqc1pxj5b454bzd-manifest.json.drv
  /nix/store/0bz9nll77j048irjxmbdpw5k6grb2xvd-nixos-system-machine-test.drv
  /nix/store/k4faqm3jddkbqy80dnng08mzqpiig9c4-closure-info.drv
  /nix/store/garvyrgm8ndy8pk5lff94ir76bpcn6mi-run-nixos-vm.drv
  /nix/store/pbsfnj9pynkk93l3cvm5yl2wxqpb635w-nixos-vm.drv
  /nix/store/q0gq5cy6m2k98xqnindbix49zx88ydsz-nixos-test-driver-sops-age-keys.drv
  /nix/store/m5prrrwyhvyyv9ljr0c3hvzfjppr0f9v-vm-test-run-sops-age-keys.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy
Failed to find a machine for remote build!
derivation: m5prrrwyhvyyv9ljr0c3hvzfjppr0f9v-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], [])