Under VS2019, CRT call the function main() with 3 auguments, why doesn't the Complier report error "incorrect number of parameters"?

In the file exe_common.inl, crt call main function like this:

    static int __cdecl invoke_main()
    {
        return main(__argc, __argv, _get_initial_narrow_environment());
    }

However, if I call main in my program with three auguments, C2660 error will occur.

just like:

#include <iostream>

using namespace std;

int index{ 10 };
int argv{ 1 };
char** argc{ NULL };
char* env{ NULL };


int main(/*int argc, char** argv, char* env*/)
{
    cout << "index=" << index << endl;
    if (index != 0)
    {
        index--;
        main(argc, argv, env);
    }
}

I am so curious about the startup code, so thank you for you answer.