当我尝试使用带有参数的priority_queue作为指向结构的指针时，为什么会弹出错误

struct MyStruct {
    int value;
};

struct MyStructCompare {
    bool operator()(const MyStruct* a, const MyStruct* b) const {
        return a->value < b->value; // 自定义比较逻辑
    }
};

int main() {
    priority_queue<MyStruct*, vector<MyStruct*>, MyStructCompare> pq;
    // 使用自定义的比较器 MyStructCompare

    MyStruct* struct1 = new MyStruct{1};
    MyStruct* struct2 = new MyStruct{2};
    MyStruct* struct3 = new MyStruct{3};

    pq.push(struct2);
    pq.push(struct1);
    pq.push(struct3);

    while (!pq.empty()) {
        MyStruct* top = pq.top();
        cout << top->value << " ";
        pq.pop();
    }

    delete struct1;
    delete struct2;
    delete struct3;

    return 0;
}