this derivation will be built:
  /nix/store/rk79mqd2jdnzjjz46w7qbgx2agzfd66a-bcachefs-module-7.0.0-28-generic-64k.drv
building '/nix/store/rk79mqd2jdnzjjz46w7qbgx2agzfd66a-bcachefs-module-7.0.0-28-generic-64k.drv'...