these 3 derivations will be built:
  /nix/store/rh9hx2i6lc4mcx2fn8661509vv4ib5yk-start-postgres-server-test.drv
  /nix/store/cgb1g3gl0qc5imxhfbb4fni90lj4h71h-postgres-15-check-harness.drv
  /nix/store/crdzw0x5z97cvkc05xw56x7ax88k1sa3-run-check-harness-psql-15.drv