these 2 derivations will be built:
  /nix/store/g8kb1z04ai5wpp0rac1nkdzvdwk8jqkd-nixos-test-driver-pg_partman.drv
  /nix/store/45wlc7gqwhwr1bdjbixqvsbk1kwrcqh4-vm-test-run-pg_partman.drv