Boost: Threading и мьютексы в функторе

Я пытаюсь что-то простое с потоками и мьютексами в C ++ с boost.

Это код:

#include <iostream>

#include <boost/thread/thread.hpp>

class mutex_test
{
private:
boost::mutex mut;
public:
void operator()()
{
boost::mutex::scoped_lock lock(mut);
std::cout << "Hi!" << std::endl;
}
};

int main()
{
mutex_test tester;
boost::thread tester_thread(tester);
tester_thread.join();
return 0;
}

При компиляции я получаю эту ошибку:

In file included from C:\boost/boost/thread/detail/thread.hpp:15:0,
from C:\boost/boost/thread/thread.hpp:22,
from main.cpp:3:
C:\boost/boost/thread/detail/move.hpp: In instantiation of 'typename boost::decay<T>::type boost::thread_detail::decay_copy(T&&) [with T = mutex_test&; typename boost::decay<T>::type = mutex_test]':
C:\boost/boost/thread/detail/thread.hpp:265:88:   required from 'boost::thread::thread(F&&) [with F = mutex_test&]'
main.cpp:20:36:   required from here
C:\boost/boost/thread/detail/move.hpp:246:37: error: use of deleted function 'mutex_test::mutex_test(const mutex_test&)'

main.cpp:5:7: note: 'mutex_test::mutex_test(const mutex_test&)' is implicitly deleted because the default definition would be ill-formed:
main.cpp:5:7: error: use of deleted function 'boost::mutex::mutex(const boost::mutex&)'
In file included from C:\boost/boost/thread/mutex.hpp:14:0,
from C:\boost/boost/thread/detail/thread.hpp:16,
from C:\boost/boost/thread/thread.hpp:22,

from main.cpp:3:
C:\boost/boost/thread/win32/mutex.hpp:29:9: error: declared here

In file included from C:\boost/boost/thread/thread.hpp:22:0,
from main.cpp:3:
C:\boost/boost/thread/detail/thread.hpp: In instantiation of 'boost::detail::thread_data<F>::thread_data(F&&) [with F = mutex_test]':
C:\boost/boost/thread/win32/thread_heap_alloc.hpp:100:72:   required from 'T* boost::detail::heap_new(A1&&) [with T = boost::detail::thread_data<mutex_test>; A1 = mutex_test]'
C:\boost/boost/thread/detail/thread.hpp:214:38:   required from 'static boost::detail::thread_data_ptr boost::thread::make_thread_info(F&&) [with F = mutex_test; boost::detail::thread_data_ptr = boost::intrusive_ptr<boost::detail::thread_data_base>]'
C:\boost/boost/thread/detail/thread.hpp:265:88:   required from 'boost::thread::thread(F&&) [with F = mutex_test&]'
main.cpp:20:36:   required from here

C:\boost/boost/thread/detail/thread.hpp:98:40: error: use of deleted function 'mutex_test::mutex_test(const mutex_test&)'

In file included from C:\boost/boost/system/system_error.hpp:14:0,
from C:\boost/boost/thread/exceptions.hpp:22,
from C:\boost/boost/thread/win32/thread_primitives.hpp:16,
from C:\boost/boost/thread/win32/thread_data.hpp:11,
from C:\boost/boost/thread/thread.hpp:15,
from main.cpp:3:
C:\boost/boost/system/error_code.hpp:214:36: warning: 'boost::system::posix_category' defined but not used [-Wunused-variable]

C:\boost/boost/system/error_code.hpp:215:36: warning: 'boost::system::errno_ecat' defined but not used [-Wunused-variable]
C:\boost/boost/system/error_code.hpp:216:36: warning: 'boost::system::native_ecat' defined but not used [-Wunused-variable]

Makefile:21: recipe for target 'main.o' failed

Ошибка возникает только тогда, когда я пытаюсь создать поток для функтора; выполнение прямо работает отлично.
Кроме того, если я удаляю все ссылки на мьютексы и блокировки, он работает нормально.

E: Неправильный журнал ошибок. Упс.