these 2 derivations will be built:
  /nix/store/g9d6kpll3dig9qc9zd1z6xlg416nmpsf-postgres-15-check-harness.drv
  /nix/store/d28p3b8d942f6b74mg1x4ndxcd3a76r5-run-check-harness-psql-15.drv
this path will be fetched (18.5 KiB download, 74.9 KiB unpacked):
  /nix/store/abl2bih0hajsl9qhlhaj6lf6f6zq6z3d-start-postgres-server-test