these 6 derivations will be built:
  /nix/store/my8mzy1q809ry8vvb0zz1fm0laf89zki-source.drv
  /nix/store/pq1z9pi2bvxiiv0hdccbc2qkzksjjkch-model_prices_and_context_window.json.drv
  /nix/store/r6qvw2m4wwn875vc5h4119kvhz9x6rd5-ccusage-20.0.31-vendor-staging.drv
  /nix/store/v2av6jzq9h44cs6ljf2h980ah50af01b-ccusage-20.0.31-vendor.drv
  /nix/store/0zzv0a4659gk98x452dqiay9s28cp16r-ccusage-20.0.31.drv
  /nix/store/y5lhqlwmq60i76k4mlslcm4qagb94b8d-check-ccusage.drv