C++错误:在移动构造函数中使用已删除的函数

#include<iostream>
#include<vector>
class Container {
    int * m_Data;
public:
    Container() {
        //Allocate an array of 20 int on heap
        m_Data = new int[20];
        std::cout << "Constructor: Allocation 20 int" << std::endl;
    }
    ~Container() {
        if (m_Data) {
            delete[] m_Data;
            m_Data = NULL;
        }
        std::cout << "Destructor called" << std::endl;
    }
    Container(const Container & obj) {
        //Allocate an array of 20 int on heap
        m_Data = new int[20];
        //Copy the data from passed object
        for (int i = 0; i < 20; i++)
            m_Data[i] = obj.m_Data[i];
        std::cout << "Copy Constructor: Allocation 20 int" << std::endl;
    }
    // will give error on adding
    Container(Container&&) = delete;
};
// Create am object of Container and return
Container getContainer() 
{
    Container obj;
    return obj;
}
int main() {
    // Create a vector of Container Type
    std::vector<Container> vecOfContainers;
    //Add object returned by function into the vector
    vecOfContainers.push_back(getContainer());
    return 0;
}

我已经编写了上面的代码，作为实践来验证从 getContainer(( 返回对象时是否调用复制构造函数，即使它是一个右值。

我知道如果用户定义的复制构造函数存在，那么编译器不会将移动构造函数声明为其类的非显式内联公共成员，签名为 T：：T(T&&(。我仍然决定添加行"容器(容器&&(=删除;"，并在编译过程中收到以下错误：

moveconstructorIntro.cpp: In function ‘Container getContainer()’:
moveconstructorIntro.cpp:44:12: error: use of deleted function 
‘Container::Container(Container&&)’
     return obj;
            ^
moveconstructorIntro.cpp:36:5: error: declared here
     Container(Container&&) = delete;
     ^
In file included from /usr/include/c++/4.8.2/x86_64-redhat-
linux/bits/c++allocator.h:33:0,
                 from /usr/include/c++/4.8.2/bits/allocator.h:46,
                 from /usr/include/c++/4.8.2/string:41,
                 from /usr/include/c++/4.8.2/bits/locale_classes.h:40,
                 from /usr/include/c++/4.8.2/bits/ios_base.h:41,
                 from /usr/include/c++/4.8.2/ios:42,
                 from /usr/include/c++/4.8.2/ostream:38,
                 from /usr/include/c++/4.8.2/iostream:39,
                 from moveconstructorIntro.cpp:5:
/usr/include/c++/4.8.2/ext/new_allocator.h: In instantiation of ‘void __gnu_cxx::new_allocator<_Tp>::construct(_Up*, _Args&& ...) [with _Up = Container; _Args = {Container}; _Tp = Container]’:
/usr/include/c++/4.8.2/bits/alloc_traits.h:254:4:   required from ‘static typename std::enable_if<std::allocator_traits<_Alloc>::__construct_helper<_Tp, _Args>::value, void>::type std::allocator_traits<_Alloc>::_S_construct(_Alloc&, _Tp*, _Args&& ...) [with _Tp = Container; _Args = {Container}; _Alloc = std::allocator<Container>; typename std::enable_if<std::allocator_traits<_Alloc>::__construct_helper<_Tp, _Args>::value, void>::type = void]’
/usr/include/c++/4.8.2/bits/alloc_traits.h:393:57:   required from ‘static decltype (_S_construct(__a, __p, (forward<_Args>(std::allocator_traits::construct::__args)...)) std::allocator_traits<_Alloc>::construct(_Alloc&, _Tp*, _Args&& ...) [with _Tp = Container; _Args = {Container}; _Alloc = std::allocator<Container>; decltype (_S_construct(__a, __p, (forward<_Args>(std::allocator_traits::construct::__args)...)) = <type error>]’
/usr/include/c++/4.8.2/bits/vector.tcc:97:40:   required from ‘void std::vector<_Tp, _Alloc>::emplace_back(_Args&& ...) [with _Args = {Container}; _Tp = Container; _Alloc = std::allocator<Container>]’
/usr/include/c++/4.8.2/bits/stl_vector.h:920:36:   required from ‘void std::vector<_Tp, _Alloc>::push_back(std::vector<_Tp, _Alloc>::value_type&&) [with _Tp = Container; _Alloc = std::allocator<Container>; std::vector<_Tp, _Alloc>::value_type = Container]’
moveconstructorIntro.cpp:52:45:   required from here
/usr/include/c++/4.8.2/ext/new_allocator.h:120:4: error: use of deleted 
function ‘Container::Container(Container&&)’
  { ::new((void *)__p) _Up(std::forward<_Args>(__args)...); }
    ^
moveconstructorIntro.cpp:36:5: error: declared here
     Container(Container&&) = delete;
     ^

错误的原因是什么？

请不要试图为我在这里做的事情找到任何用例。我刚开始用C++编写代码并试图掌握。