../../../../boost/noncopyable.hpp: In copy constructor ‘boost::spirit::qi::grammar<
        print_numbers_grammar<
            boost::spirit::lex::lexertl_iterator<
                boost::spirit::lex::lexertl_functor<
                    boost::spirit::lex::lexertl_token<
                        __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                    __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false> > > > 
    >::grammar(
        const boost::spirit::qi::grammar<
            print_numbers_grammar<
                boost::spirit::lex::lexertl_iterator<
                    boost::spirit::lex::lexertl_functor<
                        boost::spirit::lex::lexertl_token<
                            __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                        __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false> > > > > &)’:
../../../../boost/spirit/home/qi/nonterminal/grammar.hpp:28:   instantiated from ‘boost::spirit::qi::grammar<
        print_numbers_grammar<
            boost::spirit::lex::lexertl_iterator<
                boost::spirit::lex::lexertl_functor<
                    boost::spirit::lex::lexertl_token<
                        __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                    __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false>>>> > boost::spirit::qi
    ::make_parser(
        const print_numbers_grammar<
            boost::spirit::lex::lexertl_iterator<
                boost::spirit::lex::lexertl_functor<
                    boost::spirit::lex::lexertl_token<
                        __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                    __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false> > > > &)’
print_numbers.cpp:99:   instantiated from here
../../../../boost/noncopyable.hpp:27: error: ‘boost::noncopyable_::noncopyable::noncopyable(
        const boost::noncopyable_::noncopyable &)’ is private
../../../../boost/spirit/home/qi/nonterminal/grammar.hpp:28: error: within this context
../../../../boost/spirit/home/qi/nonterminal/grammar.hpp: In function ‘boost::spirit::qi::grammar<
        print_numbers_grammar<
            boost::spirit::lex::lexertl_iterator<
                boost::spirit::lex::lexertl_functor<
                    boost::spirit::lex::lexertl_token<
                        __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                    __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false>>>> > boost::spirit::qi
    ::make_parser(
        const print_numbers_grammar<
            boost::spirit::lex::lexertl_iterator<
                boost::spirit::lex::lexertl_functor<
                    boost::spirit::lex::lexertl_token<
                        __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                    __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false> > > > &)’:
../../../../boost/spirit/home/qi/nonterminal/grammar.hpp:176: synthesized method ‘boost::spirit::qi::grammar<
        print_numbers_grammar<
            boost::spirit::lex::lexertl_iterator<
                boost::spirit::lex::lexertl_functor<
                    boost::spirit::lex::lexertl_token<
                        __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                    __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false> > > > 
    >::grammar(
        const boost::spirit::qi::grammar<
            print_numbers_grammar<
                boost::spirit::lex::lexertl_iterator<
                    boost::spirit::lex::lexertl_functor<
                        boost::spirit::lex::lexertl_token<
                            __normal_iterator<char *, string>, boost::mpl::vector<int>, mpl_::bool_<false> >,
                        __normal_iterator<char *, string>, mpl_::bool_<false>, mpl_::bool_<false> > > > > &)’ first
    required here