******************************************************************************** conan test conan-center-index/recipes/wasmtime-cpp/all/test_package/conanfile.py wasmtime-cpp/0.29.0@ --profile=/home/conan/w/BuildSingleReference/32179/f1c215ce-5cf4-481c-a6c3-aa23ff620d1a/profile.txt ******************************************************************************** Auto detecting your dev setup to initialize the default profile (/home/conan/w/BuildSingleReference/.conan/profiles/default) CC and CXX: clang, clang++ Found clang 11.1 clang>=8, using the major as version Default settings os=Linux os_build=Linux arch=x86_64 arch_build=x86_64 compiler=clang compiler.version=11 compiler.libcxx=libstdc++ build_type=Release *** You can change them in /home/conan/w/BuildSingleReference/.conan/profiles/default *** *** Or override with -s compiler='other' -s ...s*** Configuration: [settings] arch=x86_64 arch_build=x86_64 build_type=Release compiler=clang compiler.libcxx=libstdc++ compiler.version=11 os=Linux os_build=Linux [options] [build_requires] [env] wasmtime/0.29.0: Not found in local cache, looking in remotes... wasmtime/0.29.0: Trying with 'conan-center'... Downloading conanmanifest.txt Downloading conanfile.py Downloading conan_export.tgz wasmtime/0.29.0: Downloaded recipe revision 8f85e593d7dd82d674b3d722b790ca84 wasmtime-cpp/0.29.0 (test package): Installing package Requirements wasmtime/0.29.0 from 'conan-center' - Downloaded wasmtime-cpp/0.29.0 from local cache - Cache Packages wasmtime/0.29.0:51595164d7d9076fe35901475473d383ec283cf5 - Download wasmtime-cpp/0.29.0:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Download Installing (downloading, building) binaries... wasmtime/0.29.0: Retrieving package 51595164d7d9076fe35901475473d383ec283cf5 from remote 'conan-center' Downloading conanmanifest.txt Downloading conaninfo.txt Downloading conan_package.tgz wasmtime/0.29.0: Package installed 51595164d7d9076fe35901475473d383ec283cf5 wasmtime/0.29.0: Downloaded package revision e099d3ae1cd2e61d1f1e3c8d5b89d4e4 wasmtime-cpp/0.29.0: Retrieving package 5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 from remote 'c3i_PR-7188' Downloading conanmanifest.txt Downloading conaninfo.txt Downloading conan_package.tgz wasmtime-cpp/0.29.0: Package installed 5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 wasmtime-cpp/0.29.0: Downloaded package revision c0a93a3a4faaa623c82cfbd0fddd593e [HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK [HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK [HOOK - conan-center.py] post_package_info(): [CMAKE FILE NOT IN BUILD FOLDERS (KB-H019)] OK [HOOK - conan-center.py] post_package_info(): [LIBRARY DOES NOT EXIST (KB-H054)] OK wasmtime-cpp/0.29.0 (test package): Generator txt created conanbuildinfo.txt wasmtime-cpp/0.29.0 (test package): Generator cmake created conanbuildinfo.cmake wasmtime-cpp/0.29.0 (test package): Generator cmake_find_package created Findwasmtime-cpp.cmake wasmtime-cpp/0.29.0 (test package): Generator cmake_find_package created Findwasmtime.cmake wasmtime-cpp/0.29.0 (test package): Generated conaninfo.txt wasmtime-cpp/0.29.0 (test package): Generated graphinfo Using lockfile: '/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178/conan.lock' Using cached profile from lockfile [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found [HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OK wasmtime-cpp/0.29.0 (test package): Calling build() ----Running------ > cd '/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="clang" -DCONAN_COMPILER_VERSION="11" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++" -DCMAKE_INSTALL_PREFIX="/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178/package" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCMAKE_MODULE_PATH="/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev '/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package' ----------------- -- The CXX compiler identification is Clang 11.1.0 -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/clang++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Conan: called by CMake conan helper -- Conan: Adjusting output directories -- Conan: Using cmake global configuration -- Conan: Adjusting default RPATHs Conan policies -- Conan: Adjusting language standard -- Conan: Compiler Clang>=8, checking major version 11 -- Conan: Checking correct version: 11 -- Conan: C++ stdlib: libstdc++ -- Conan: Using autogenerated Findwasmtime-cpp.cmake -- Found wasmtime-cpp: 0.29.0 (found version "0.29.0") -- Conan: Using autogenerated Findwasmtime.cmake -- Found wasmtime: 0.29.0 (found version "0.29.0") -- Library wasmtime found /home/conan/w/BuildSingleReference/.conan/data/wasmtime/0.29.0/_/_/package/51595164d7d9076fe35901475473d383ec283cf5/lib/libwasmtime.a -- Found: /home/conan/w/BuildSingleReference/.conan/data/wasmtime/0.29.0/_/_/package/51595164d7d9076fe35901475473d383ec283cf5/lib/libwasmtime.a -- Configuring done -- Generating done -- Build files have been written to: /home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178 ----Running------ > cmake --build '/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178' '--' '-j3' ----------------- Scanning dependencies of target example [ 50%] Building CXX object CMakeFiles/example.dir/example.cpp.o CMakeFiles/example.dir/build.make:81: recipe for target 'CMakeFiles/example.dir/example.cpp.o' failed CMakeFiles/Makefile2:94: recipe for target 'CMakeFiles/example.dir/all' failed Makefile:102: recipe for target 'all' failed CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR In file included from /home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/example.cpp:1: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/fstream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/istream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/ios:39: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/exception:143: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/nested_exception.h:40: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/move.h:54: /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:31: error: no member named 'value' in 'std::is_copy_constructible' : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ~~~~~^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:192:27: note: in instantiation of template class 'std::__and_, std::__not_>, std::__not_>>' requested here enable_if_t<__and_, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:196:7: note: while substituting prior template arguments into non-type template parameter [with _ValueType = const wasmtime::ExternRef &, _Tp = wasmtime::ExternRef, _Mgr = std::any::_Manager_internal] any(_ValueType&& __value) ^~~~~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:973:28: note: while substituting deduced template arguments into function template 'any' [with _ValueType = const wasmtime::ExternRef &, _Tp = (no value), _Mgr = (no value), $3 = (no value)] = decltype(::new _Tp(declval<_Arg>()))> ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:974:24: note: in instantiation of default argument for '__test' required here static true_type __test(int); ^~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:984:24: note: while substituting deduced template arguments into function template '__test' [with _Tp = wasmtime::ExternRef, _Arg = const wasmtime::ExternRef &, $2 = (no value)] typedef decltype(__test<_Tp, _Arg>(0)) type; ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:144:14: note: (skipping 13 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all) : public conditional<_B1::value, _B2, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:1409:44: note: while substituting deduced template arguments into function template 'any' [with _ValueType = const wasmtime::ExternRef &, _Tp = (no value), _Mgr = (no value), $3 = (no value), $4 = (no value)] __is_trivially_constructible(_Tp, const _Tp&)>> ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:104:8: note: in instantiation of template class 'std::is_trivially_copy_constructible' requested here is_trivially_copy_constructible<_Tp>::value ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:425:7: note: in instantiation of default argument for '_Optional_payload' required here _Optional_payload<_Tp> _M_payload; ^~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:454:15: note: in instantiation of template class 'std::_Optional_base' requested here : private _Optional_base<_Tp>, ^ /home/conan/w/BuildSingleReference/.conan/data/wasmtime-cpp/0.29.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/wasmtime.hh:1857:32: note: in instantiation of template class 'std::optional' requested here Val(std::optional ptr) : val{} { ^ In file included from /home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/example.cpp:1: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/fstream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/istream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/ios:39: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/exception:143: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/nested_exception.h:40: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/move.h:54: /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:144:14: error: base class has incomplete type : public conditional<_B1::value, _B2, _B1>::type ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:170:17: note: in instantiation of template class 'std::__and_, std::is_constructible>' requested here enable_if<__and_, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:175:5: note: in instantiation of template type alias '__any_constructible' requested here using __any_constructible_t = ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:181:56: note: in instantiation of template type alias '__any_constructible_t' requested here __any_constructible_t<_Tp, _ValueType&&> = true, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:183:7: note: while substituting prior template arguments into non-type template parameter [with _ValueType = wasmtime::ExternRef &, _Tp = wasmtime::ExternRef, _Mgr = std::any::_Manager_internal] any(_ValueType&& __value) ^~~~~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:973:28: note: while substituting deduced template arguments into function template 'any' [with _ValueType = wasmtime::ExternRef &, _Tp = (no value), _Mgr = (no value), $3 = (no value), $4 = (no value)] = decltype(::new _Tp(declval<_Arg>()))> ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:974:24: note: (skipping 9 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all) static true_type __test(int); ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_, std::is_convertible>' requested here : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_>, std::is_constructible, std::is_convertible>' requested here /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:485:29: note: in instantiation of template class 'std::__and_, wasmtime::ExternRef>>, std::__not_>, std::is_constructible, std::is_convertible>' requested here enable_if_t<__and_< ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:491:17: note: while substituting prior template arguments into non-type template parameter [with _Up = wasmtime::ExternRef &] constexpr optional(_Up&& __t) ^~~~~~~~~~~~~~~~~~~ /home/conan/w/BuildSingleReference/.conan/data/wasmtime-cpp/0.29.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/wasmtime.hh:2154:38: note: while substituting deduced template arguments into function template 'optional' [with _Up = wasmtime::ExternRef &, $1 = (no value)] inline Val::Val(ExternRef ptr) : Val(std::optional(ptr)) {} ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:1129:12: note: definition of 'std::is_constructible' is not complete until the closing '}' struct is_constructible ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:154:41: error: no member named 'value' in 'std::is_constructible' : public __bool_constant ~~~~~^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:144:26: note: in instantiation of template class 'std::__not_>' requested here : public conditional<_B1::value, _B2, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_>, std::__not_>>' requested here : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:192:27: note: in instantiation of template class 'std::__and_, std::__not_>, std::__not_>>' requested here enable_if_t<__and_, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:196:7: note: while substituting prior template arguments into non-type template parameter [with _ValueType = wasmtime::ExternRef &, _Tp = wasmtime::ExternRef, _Mgr = std::any::_Manager_internal] any(_ValueType&& __value) ^~~~~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:973:28: note: while substituting deduced template arguments into function template 'any' [with _ValueType = wasmtime::ExternRef &, _Tp = (no value), _Mgr = (no value), $3 = (no value)] = decltype(::new _Tp(declval<_Arg>()))> ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:974:24: note: (skipping 9 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all) static true_type __test(int); ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_, std::is_convertible>' requested here : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_>, std::is_constructible, std::is_convertible>' requested here /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:485:29: note: in instantiation of template class 'std::__and_, wasmtime::ExternRef>>, std::__not_>, std::is_constructible, std::is_convertible>' requested here enable_if_t<__and_< ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:491:17: note: while substituting prior template arguments into non-type template parameter [with _Up = wasmtime::ExternRef &] constexpr optional(_Up&& __t) ^~~~~~~~~~~~~~~~~~~ /home/conan/w/BuildSingleReference/.conan/data/wasmtime-cpp/0.29.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/wasmtime.hh:2154:38: note: while substituting deduced template arguments into function template 'optional' [with _Up = wasmtime::ExternRef &, $1 = (no value)] inline Val::Val(ExternRef ptr) : Val(std::optional(ptr)) {} ^ In file included from /home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/example.cpp:1: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/fstream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/istream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/ios:39: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/exception:143: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/nested_exception.h:40: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/move.h:54: /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:144:31: error: no member named 'value' in 'std::is_copy_constructible' : public conditional<_B1::value, _B2, _B1>::type ~~~~~^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:170:17: note: in instantiation of template class 'std::__and_, std::is_constructible>' requested here enable_if<__and_, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:175:5: note: in instantiation of template type alias '__any_constructible' requested here using __any_constructible_t = ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:181:56: note: in instantiation of template type alias '__any_constructible_t' requested here __any_constructible_t<_Tp, _ValueType&&> = true, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:183:7: note: while substituting prior template arguments into non-type template parameter [with _ValueType = const wasmtime::Val &, _Tp = wasmtime::Val, _Mgr = std::any::_Manager_external] any(_ValueType&& __value) ^~~~~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:973:28: note: while substituting deduced template arguments into function template 'any' [with _ValueType = const wasmtime::Val &, _Tp = (no value), _Mgr = (no value), $3 = (no value), $4 = (no value)] = decltype(::new _Tp(declval<_Arg>()))> ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:974:24: note: (skipping 39 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all) static true_type __test(int); ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_, std::is_convertible>' requested here : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_>, std::is_constructible, std::is_convertible>' requested here /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:485:29: note: in instantiation of template class 'std::__and_, wasmtime::Val>>, std::__not_>, std::is_constructible, std::is_convertible>' requested here enable_if_t<__and_< ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:491:17: note: while substituting prior template arguments into non-type template parameter [with _Up = wasmtime::Val] constexpr optional(_Up&& __t) ^~~~~~~~~~~~~~~~~~~ /home/conan/w/BuildSingleReference/.conan/data/wasmtime-cpp/0.29.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/wasmtime.hh:2214:12: note: while substituting deduced template arguments into function template 'optional' [with _Up = wasmtime::Val, $1 = (no value)] return val; ^ In file included from /home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/example.cpp:1: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/fstream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/istream:38: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/ios:39: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/exception:143: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/nested_exception.h:40: In file included from /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/bits/move.h:54: /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:31: error: no member named 'value' in 'std::is_copy_constructible' : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ~~~~~^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:192:27: note: in instantiation of template class 'std::__and_, std::__not_>, std::__not_>>' requested here enable_if_t<__and_, ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/any:196:7: note: while substituting prior template arguments into non-type template parameter [with _ValueType = const wasmtime::Val &, _Tp = wasmtime::Val, _Mgr = std::any::_Manager_external] any(_ValueType&& __value) ^~~~~~~~~~~~~~~~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:973:28: note: while substituting deduced template arguments into function template 'any' [with _ValueType = const wasmtime::Val &, _Tp = (no value), _Mgr = (no value), $3 = (no value)] = decltype(::new _Tp(declval<_Arg>()))> ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:974:24: note: in instantiation of default argument for '__test' required here static true_type __test(int); ^~~~~~~~~~~ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:984:24: note: while substituting deduced template arguments into function template '__test' [with _Tp = wasmtime::ExternRef, _Arg = const wasmtime::Val &, $2 = (no value)] typedef decltype(__test<_Tp, _Arg>(0)) type; ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:144:14: note: (skipping 37 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all) : public conditional<_B1::value, _B2, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_, std::is_convertible>' requested here : public conditional<_B1::value, __and_<_B2, _B3, _Bn...>, _B1>::type ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/type_traits:149:14: note: in instantiation of template class 'std::__and_>, std::is_constructible, std::is_convertible>' requested here /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:485:29: note: in instantiation of template class 'std::__and_, wasmtime::Val>>, std::__not_>, std::is_constructible, std::is_convertible>' requested here enable_if_t<__and_< ^ /usr/bin/../lib/gcc/x86_64-linux-gnu/7.5.0/../../../../include/c++/7.5.0/optional:491:17: note: while substituting prior template arguments into non-type template parameter [with _Up = wasmtime::Val] constexpr optional(_Up&& __t) ^~~~~~~~~~~~~~~~~~~ /home/conan/w/BuildSingleReference/.conan/data/wasmtime-cpp/0.29.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/wasmtime.hh:2214:12: note: while substituting deduced template arguments into function template 'optional' [with _Up = wasmtime::Val, $1 = (no value)] return val; ^ 5 errors generated. make[2]: *** [CMakeFiles/example.dir/example.cpp.o] Error 1 make[1]: *** [CMakeFiles/example.dir/all] Error 2 make: *** [all] Error 2 wasmtime-cpp/0.29.0: WARN: Lib folder doesn't exist, can't collect libraries: /home/conan/w/BuildSingleReference/.conan/data/wasmtime-cpp/0.29.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/lib ERROR: wasmtime-cpp/0.29.0 (test package): Error in build() method, line 12 cmake.build() ConanException: Error 2 while executing cmake --build '/home/conan/w/BuildSingleReference/conan-center-index/recipes/wasmtime-cpp/all/test_package/build/e4de2bacfdd0ff621f1917e73420c90eb8679178' '--' '-j3'