Unable to assign from std::make_pair if type is not movable

Question

I'm attempting to compile the following code with the -std=c++11 flag:
#include <utility>
struct Y
    Y();
    Y(const Y&);
int main(void) {
    Y y;
    std::pair<int, Y> p = std::make_pair(0, y);
    return 0;
This works fine when compiled with:
CC -std=c++03 -m64 -c
or on Linux (GCC 4.7.3/GCC 4.9) with:
g++ -std=c++11 -m64 -c
However when compiled with:
CC -std=c++11 -m64 -c
It produces the following error:
"pair.cpp", line 11: Error: Using deleted function 'std::pair<int, Y>::pair(std::pair<int, Y>&&)'.
1 Error(s) detected.
I suspect this is a compiler bug, but wanted to confirm there wasn't a clause in the standard that would explain this.

Answer 1

Another sample program that triggers this bug is:
#include <map>
#include <string>
class CUserCopyAssign
    public:
        CUserCopyAssign(int a);
        CUserCopyAssign(const CUserCopyAssign &other);
        CUserCopyAssign &operator=(const CUserCopyAssign &other);
        int getA(void) const;
    private:
        int m_A;
CUserCopyAssign::CUserCopyAssign(int a) : m_A(a)
CUserCopyAssign::CUserCopyAssign(const CUserCopyAssign &other) : m_A(other.m_A)
CUserCopyAssign &CUserCopyAssign::operator=(const CUserCopyAssign &other)
    m_A = other.m_A;
    return *this;
int CUserCopyAssign::getA(void) const
    return m_A;
int main(int, char **)
    typedef std::map<std::string, CUserCopyAssign> TStrObjMap;
    TStrObjMap aMap;
    CUserCopyAssign obj(7);
    aMap.insert(TStrObjMap::value_type("a", obj));
    return 0;
When built with:
CC -std=c++11 -m64 main.cpp
you get the same error:
"/opt/SolarisStudio12.4-beta_mar14-solaris-x86/lib/compilers/CC-gcc/include/c++/4.7.2/bits/stl_tree.h", line 139: Error: Using deleted function 'std::pair<const std::string, CUserCopyAssign>::pair(std::pair<const std::string, CUserCopyAssign>&&)'.
Please can you make sure this case is covered in your regression tests as well as the make_pair example as it will be critical to people trying to compile a mix of old-style C++03 and new-style C++11 code in the same project.