Pretty-printing of boost::shared_ptr broken

#include <map>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>

class T : public boost::enable_shared_from_this<T>
{
public:
    T() : y(987) {}    
    int x = 123;
    int y;
};

using TPtr = boost::shared_ptr<T>;
using TMap = std::map<std::string, TPtr>;

int main(int, char**)  {
    TMap map;
    for (int i = 0; i < 300; ++i) {
        boost::shared_ptr<T> t(new T);
        map[std::string("item_") + std::to_string(i)] = t;
    }
    asm("nop");
}

project(test_project)

cmake_minimum_required(VERSION 3.14)

set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

add_definitions("-O0")
find_package(Boost)
add_executable(testme
 testme
)


target_include_directories(testme
 PRIVATE ${Boost_INCLUDE_DIRS}
)
 
target_link_libraries(testme 

 ${Boost_LIBRARIES}
)