this derivation will be built:
  /nix/store/19z87r6wy8s100q426ay7bb0hzvvqnqf-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/19z87r6wy8s100q426ay7bb0hzvvqnqf-bcachefs-module-7.0.0-38-generic.drv'...