xbt_dynar_get_cpy(keys, i, &thiskey);
xbt_dynar_get_cpy(lens, i, &thislen);
DEBUG6("multi_get: at level %d (%p), len=%ld, key=%p |%*s|",
xbt_dynar_get_cpy(keys, i, &thiskey);
xbt_dynar_get_cpy(lens, i, &thislen);
DEBUG6("multi_get: at level %d (%p), len=%ld, key=%p |%*s|",