this derivation will be built:
  /nix/store/fm66mycn13zy9kdqa4i0wfhn4bdglav5-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/fm66mycn13zy9kdqa4i0wfhn4bdglav5-bcachefs-module-7.0.0-29-generic.drv'...