this derivation will be built:
  /nix/store/xiiw39qxljn70vl95g5c2y1l16jd2jq1-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/xiiw39qxljn70vl95g5c2y1l16jd2jq1-bcachefs-module-7.0.0-31-generic.drv'...