these 6 derivations will be built:
  /nix/store/lxvz1z38flm8gcs2kcmvrykayffhzjd7-source.drv
  /nix/store/7bjhi599hipcmy1jyprdss9cykcgpf9z-ccusage-20.0.43-vendor-staging.drv
  /nix/store/9gmr7shq3qjy1ca0ll5c97k5v0q65808-model_prices_and_context_window.json.drv
  /nix/store/gzbaab170mr2n87l46qd9gdcdlazsf1d-ccusage-20.0.43-vendor.drv
  /nix/store/jlrsn6cb3qri6wm5gk2bp5b8wvx9zxqg-ccusage-20.0.43.drv
  /nix/store/dm29vrs0fa29nyv0wxid1g40qg99n96d-check-ccusage.drv