these 2 derivations will be built:
  /nix/store/gbbkbgp90ffd5rlkxg2nq8m27ia06r5m-claudebox.drv
  /nix/store/ry0qddi6spa3ixjhw5wgnivw4xaix32b-check-claudebox.drv
warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy