this derivation will be built:
  /nix/store/b9pgbjh29yi24dx436v7hn1rkshxy6y4-bcachefs-module-7.0.0-27-generic.drv
building '/nix/store/b9pgbjh29yi24dx436v7hn1rkshxy6y4-bcachefs-module-7.0.0-27-generic.drv'...