使用mismatch函数发生严重的内存泄漏,请指教

#include "stdafx.h"

#include <list>

#include <vector>

#include <iostream>

#include <algorithm>

#include <iterator>

#include <functional>

using namespace std;



int _tmain(int argc, _TCHAR* argv[])

{

	vector<int> coll1;

	list<int> coll2;



	for ( int i = 1; i < 6; ++i)

	{

		coll1.push_back(i);

	}

	for ( int i = 2; i <= 16; i =+ 2)

	{

		coll2.push_back(i);

	}

	// find first mismatch

	std::pair<vector<int>::iterator, list<int>::iterator> values;

	values = mismatch(coll1.begin(),coll1.end(), // first range

						coll2.begin());               // second range



	if (values.first == coll1.end())

	{

		cout << "no mismatch!" << endl;

	}

	else

	{

		cout << "first mismatch:" 

			<< *values.first << "and"

			<< *values.second << endl;

	}

	return 0;

}