alloc_set_id_cleanup
alloc_set_id_cleanup(w->env->alloc, &libworker_alloc_cleanup, w);
void alloc_set_id_cleanup(struct alloc_cache* alloc, void (*cleanup)(void*),
alloc_set_id_cleanup(worker->alloc, &worker_alloc_cleanup, worker);
alloc_set_id_cleanup(w->env->alloc, &libworker_alloc_cleanup, w);
void alloc_set_id_cleanup(struct alloc_cache* alloc, void (*cleanup)(void*),