this derivation will be built:
  /nix/store/kyzjnch3jy5hj8f87n080gaq6h6sglyz-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/kyzjnch3jy5hj8f87n080gaq6h6sglyz-bcachefs-module-7.0.0-39-generic.drv'...