"g++-12"   -fvisibility-inlines-hidden -std=c++17 -fPIC -m64 -pthread -O0 -fno-inline -Wall -fvisibility=hidden  -DBOOST_ALL_NO_LIB=1 -DBOOST_COBALT_USE_STD_PMR=1   -I".." -I"../libs/hana/include" -I"../libs/hana/test/_include"  -c -o "/var/boost/run/results/boost/bin.v2/libs/hana/test/test~experimental~printable~pair.test/gcc-12~c++17/debug/x86_64/debug-symbols-off/threading-multi/visibility-hidden/experimental/printable/pair.o" "../libs/hana/test/experimental/printable/pair.cpp"

In file included from ../libs/hana/test/experimental/printable/pair.cpp:6:
../boost/hana/experimental/printable.hpp: In instantiation of 'struct boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, void>':
../boost/hana/core/default.hpp:26:9:   required by substitution of 'template<class Method> struct boost::hana::is_default<Method, decltype ((void)(static_cast<boost::hana::default_>((*(Method*)(0)))))> [with Method = boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, void>]'
../boost/hana/experimental/printable.hpp:97:75:   required from 'constexpr const bool boost::hana::experimental::Printable<boost::hana::integral_constant_tag<int> >::value'
../boost/hana/experimental/printable.hpp:77:19:   required from 'std::string boost::hana::experimental::print_t::operator()(const T&) const [with T = boost::hana::integral_constant<int, 1>; std::string = std::__cxx11::basic_string<char>]'
../boost/hana/experimental/printable.hpp:207:48:   required from 'static std::string boost::hana::experimental::print_impl<P, boost::hana::when<boost::hana::Product<P>::value> >::apply(const T&) [with T = boost::hana::pair<int, boost::hana::integral_constant<int, 1> >; P = boost::hana::pair_tag; std::string = std::__cxx11::basic_string<char>]'
../boost/hana/experimental/printable.hpp:86:32:   required from 'std::string boost::hana::experimental::print_t::operator()(const T&) const [with T = boost::hana::pair<int, boost::hana::integral_constant<int, 1> >; std::string = std::__cxx11::basic_string<char>]'
../libs/hana/test/experimental/printable/pair.cpp:17:40:   required from here
../boost/hana/experimental/printable.hpp:49:12: error: ambiguous template instantiation for 'struct boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, boost::hana::when<true> >'
   49 |     struct print_impl : print_impl<T, hana::when<true>> { };
      |            ^~~~~~~~~~
../boost/hana/experimental/printable.hpp:52:12: note: candidates are: 'template<class T, bool condition> struct boost::hana::experimental::print_impl<T, boost::hana::when<condition> > [with T = boost::hana::integral_constant_tag<int>; bool condition = true]'
   52 |     struct print_impl<T, hana::when<condition>> : hana::default_ {
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../boost/hana/experimental/printable.hpp:189:12: note:                 'template<class C> struct boost::hana::experimental::print_impl<C, boost::hana::when<(boost::hana::Constant<C>::value && boost::hana::experimental::Printable<typename C::value_type>::value)> > [with C = boost::hana::integral_constant_tag<int>]'
  189 |     struct print_impl<C, hana::when<
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~
  190 |         hana::Constant<C>::value &&
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~
  191 |         Printable<typename C::value_type>::value
      |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  192 |     >> {
      |     ~~      
../boost/hana/experimental/printable.hpp:49:12: error: invalid use of incomplete type 'struct boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, boost::hana::when<true> >'
   49 |     struct print_impl : print_impl<T, hana::when<true>> { };
      |            ^~~~~~~~~~
../boost/hana/experimental/printable.hpp:49:12: note: declaration of 'struct boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, boost::hana::when<true> >'
../boost/hana/experimental/printable.hpp: In instantiation of 'std::string boost::hana::experimental::print_t::operator()(const T&) const [with T = boost::hana::integral_constant<int, 1>; std::string = std::__cxx11::basic_string<char>]':
../boost/hana/experimental/printable.hpp:207:48:   required from 'static std::string boost::hana::experimental::print_impl<P, boost::hana::when<boost::hana::Product<P>::value> >::apply(const T&) [with T = boost::hana::pair<int, boost::hana::integral_constant<int, 1> >; P = boost::hana::pair_tag; std::string = std::__cxx11::basic_string<char>]'
../boost/hana/experimental/printable.hpp:86:32:   required from 'std::string boost::hana::experimental::print_t::operator()(const T&) const [with T = boost::hana::pair<int, boost::hana::integral_constant<int, 1> >; std::string = std::__cxx11::basic_string<char>]'
../libs/hana/test/experimental/printable/pair.cpp:17:40:   required from here
../boost/hana/experimental/printable.hpp:86:32: error: 'apply' is not a member of 'Print' {aka 'boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, void>'}
   86 |             return Print::apply(t);
      |                    ~~~~~~~~~~~~^~~
../boost/hana/experimental/printable.hpp: In instantiation of 'std::string boost::hana::experimental::print_t::operator()(const T&) const [with T = boost::hana::integral_constant<int, 2>; std::string = std::__cxx11::basic_string<char>]':
../boost/hana/experimental/printable.hpp:207:48:   required from 'static std::string boost::hana::experimental::print_impl<P, boost::hana::when<boost::hana::Product<P>::value> >::apply(const T&) [with T = boost::hana::pair<int, boost::hana::integral_constant<int, 2> >; P = boost::hana::pair_tag; std::string = std::__cxx11::basic_string<char>]'
../boost/hana/experimental/printable.hpp:86:32:   required from 'std::string boost::hana::experimental::print_t::operator()(const T&) const [with T = boost::hana::pair<int, boost::hana::integral_constant<int, 2> >; std::string = std::__cxx11::basic_string<char>]'
../libs/hana/test/experimental/printable/pair.cpp:25:40:   required from here
../boost/hana/experimental/printable.hpp:86:32: error: 'apply' is not a member of 'Print' {aka 'boost::hana::experimental::print_impl<boost::hana::integral_constant_tag<int>, void>'}