Visual Studio unordered_set exception , works on Codeblocks

typedef struct MyStruct {
    unordered_set<int> mySet;
}MyStruct;

int main(){
    unordered_set<int> sset{ 1,2,3,4,5 };
    MyStruct tk;
    tk.mySet = sset;  //This works fine.
    for (auto x : tk.mySet) printf("%d ", x);

    MyStruct *Arr = (MyStruct *)malloc(10* sizeof(MyStruct));

    Arr[0] = tk;  // This isnt working, giving an exception 
                  //the same code runs as expected on codeblocks 

    for (auto x : Arr[0].mySet) printf("%d ", x);

    return 0;
}

This is the exception i get when i run the debugger.

.exe!std::list

::_Orphan_ptr(std::_List_node * _Ptr) Line 1919 C++ .exe!std::list >::clear() Line 1501 C++
.exe!std::_Hash,std::equal_to >,std::allocator,0> >::_Copy(const std::_Hash,std::equal_to >,std::allocator,0> > & _Right) Line 843 C++
.exe!std::_Hash,std::equal_to >,std::allocator,0> >::operator=(const
std::_Hash,std::equal_to >,std::allocator,0> > & _Right) Line 291 C++
.exe!std::unordered_set,std::equal_to,std::allocator >::operator=(const std::unordered_set,std::equal_to,std::allocator > & _Right) Line 187 C++
.exe!main()
[External Code]
[Frames below may be incorrect and/or missing, no symbols loaded for kernel32.dll]