these 2 derivations will be built:
  /nix/store/3x2bxnak02cmyslxbwc4f0x00xaf4qgp-nixos-test-driver-pgaudit.drv
  /nix/store/zbzzd31x47kw9lxmccnfg7wglsqlskr5-vm-test-run-pgaudit.drv