these 2 derivations will be built:
  /nix/store/y9v969lhfmhnr87hpwdm6d73vy79rqs1-nixos-test-driver-pgaudit.drv
  /nix/store/6nr83qcxsf66aqdrpfsjqj8vdk6gpmj0-vm-test-run-pgaudit.drv