these 2 derivations will be built:
  /nix/store/9r3azddz80rz31h9x76nf44ry42zz25x-nixos-test-driver-hypopg.drv
  /nix/store/1k2yfy184c4q85hdg7nw5r6vcsx6cr2a-vm-test-run-hypopg.drv