this derivation will be built:
  /nix/store/dan78fbn7rsfw1zd19w5rp0gf9yi0hf3-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/dan78fbn7rsfw1zd19w5rp0gf9yi0hf3-bcachefs-module-7.0.0-39-generic.drv'...