this derivation will be built:
  /nix/store/1xcn6mib16br01b8fac3d4r6s6hn6crp-bcachefs-module-7.0.0-29-generic.drv
building '/nix/store/1xcn6mib16br01b8fac3d4r6s6hn6crp-bcachefs-module-7.0.0-29-generic.drv'...