this derivation will be built:
  /nix/store/6a20ks31k6vgvd3mbjzhv59ba8fpwl5w-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/6a20ks31k6vgvd3mbjzhv59ba8fpwl5w-bcachefs-module-7.0.0-29-generic.drv'...