this derivation will be built:
  /nix/store/8d37khz8c9wjgiix7kmklb3bgn5gfz7s-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/8d37khz8c9wjgiix7kmklb3bgn5gfz7s-bcachefs-module-7.0.0-38-generic.drv'...