push_back using the move constructor does not call the destructor?

The following code creates a temporary object A and pushes it into a vector. The copy constructor is deleted and the move constructor is called during the push_back. I am not sure the design of this code is correct, and surely there is a memory leak.

using namespace std;

class A
{
public:
  A(const string& str)
  {
    ptr = new char[str.size()];
    copy(str.begin(), str.end(), ptr);
    cout << ptr << " Constructor\n" ;
  }

  A(const A& a) = delete;    // copy constructor
  
  A( A&& a)                
  {
    cout << "Move constructor\n";
    ptr = a.ptr;
    a.ptr = nullptr;
  }

  ~A()
  {
    cout << ptr << " Destructor\n";
    delete[] ptr;
    ptr = nullptr;
  }

  void print()
  {
    cout << ptr << endl;
  }

private:
  char* ptr; 
};



int main()
{
  vector<A> v;
  v.reserve(5);

  v.push_back( A("hello")  );
  v[0].print();
  cout << "here" << endl;
  
  return 0;
}

The output is:

    hello Constructor
    Move constructor

Why the print function doesn't print, and the destructor is not called? Thanks