these 3 derivations will be built:
  /nix/store/0ygc5da8p50b69xixbxfj9n227d7n64q-start-postgres-server-test.drv
  /nix/store/jxr6aj9fjr4lhwk9myz9xdyz2sy6r19v-postgres-15-check-harness.drv
  /nix/store/rrqb2z9yi0s0qrkbjbghgwsgic9wdpb7-run-check-harness-psql-15.drv