these 2 derivations will be built:
  /nix/store/0z7pb9zp1ksxbd6vww7v3scbhf9p58x9-nixos-test-driver-plpgsql_check.drv
  /nix/store/imcqkvjmcpsxyhjj5rsm5gq2pgmfgzm9-vm-test-run-plpgsql_check.drv