these 3 derivations will be built:
  /nix/store/zsryfi9kff52dsgs4smxz1qgry18b2aj-start-postgres-server-test.drv
  /nix/store/ci5ckh731m608pab82da9n0lxs1ybyij-postgres-15-check-harness.drv
  /nix/store/ca6290jc78qvpc2irzrv051i5hcnqr5y-run-check-harness-psql-15.drv