this derivation will be built:
  /nix/store/5m91f7bai3v11vhm57gq55p6vq17frrx-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/5m91f7bai3v11vhm57gq55p6vq17frrx-bcachefs-module-7.0.0-38-generic.drv'...