this derivation will be built:
  /nix/store/4md9xyxfcp199l5p8flvya5gvqv9abpj-bcachefs-module-7.0.0-30-generic.drv
building '/nix/store/4md9xyxfcp199l5p8flvya5gvqv9abpj-bcachefs-module-7.0.0-30-generic.drv'...