this derivation will be built:
  /nix/store/r257q7ghjz5bmnm09s6g1yxndqmn34sh-run-check-harness-psql-15.drv
these 2 paths will be fetched (23.2 KiB download, 92.6 KiB unpacked):
  /nix/store/pjb31xr1jx70g3bh4yjrib6ccmigxdy9-postgres-15-check-harness
  /nix/store/xijs9ig4r0060bqbc1299lrsxx607zz8-start-postgres-server-test