these 2 derivations will be built:
  /nix/store/58ply2hvrc8zcpx0kyhn9gvgif1lady1-postgres-15-check-harness.drv
  /nix/store/fbv9rmr6h6939v1x3qfmnj156f6ij9yp-run-check-harness-psql-15.drv