this derivation will be built:
  /nix/store/ml2hmqwk64fjbsd4cq41w8xi7xwq9dkg-bcachefs-module-7.0.0-27-generic-64k.drv
building '/nix/store/ml2hmqwk64fjbsd4cq41w8xi7xwq9dkg-bcachefs-module-7.0.0-27-generic-64k.drv'...