these 2 derivations will be built:
  /nix/store/pfrj7di3d929gmdr44hmnj34r32r7skk-nixos-test-driver-pgjwt.drv
  /nix/store/7a0q70rm8d45w3w26gzafyf486mxf8sg-vm-test-run-pgjwt.drv