********************************************************************************
conan test cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/conanfile.py reactiveplusplus/2.0.0@#cae72a272f84e38c96d49e6e4262fb49 -pr /home/conan/w/prod-v1/bsr/74588/baede/profile_linux_12_libstdcpp_clang_release_64..txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True
********************************************************************************
Auto detecting your dev setup to initialize the default profile (/home/conan/w/prod-v1/bsr/74588/eeece/.conan/profiles/default)
CC and CXX: clang, clang++ 
Found clang 12.0
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=12
	compiler.libcxx=libstdc++
	build_type=Release
*** You can change them in /home/conan/w/prod-v1/bsr/74588/eeece/.conan/profiles/default ***
*** Or override with -s compiler='other' -s ...s***


Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libstdc++
compiler.version=12
os=Linux
[options]
[build_requires]
[env]
[conf]
tools.system.package_manager:mode=install
tools.system.package_manager:sudo=True

reactiveplusplus/2.0.0 (test package): Installing package
Requirements
    reactiveplusplus/2.0.0 from local cache - Cache
Packages
    reactiveplusplus/2.0.0:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Download

Installing (downloading, building) binaries...
reactiveplusplus/2.0.0: Retrieving package 5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 from remote 'c3i_PR-21858' 
Downloading conanmanifest.txt
Downloading conaninfo.txt
Downloading conan_package.tgz
reactiveplusplus/2.0.0: Package installed 5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9
reactiveplusplus/2.0.0: Downloaded package revision d508f982a9f2a35c48b36f3ebc268c2b
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reactiveplusplus/2.0.0 (test package): Generator txt created conanbuildinfo.txt
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reactiveplusplus/2.0.0 (test package): Preset 'release' added to CMakePresets.json. Invoke it manually using 'cmake --preset release'
reactiveplusplus/2.0.0 (test package): If your CMake version is not compatible with CMakePresets (<3.19) call cmake like: 'cmake <path> -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE=/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release/generators/conan_toolchain.cmake -DCMAKE_POLICY_DEFAULT_CMP0091=NEW -DCMAKE_BUILD_TYPE=Release'
reactiveplusplus/2.0.0 (test package): Generator 'VirtualRunEnv' calling 'generate()'
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Using lockfile: '/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release/generators/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
reactiveplusplus/2.0.0 (test package): Calling build()
reactiveplusplus/2.0.0 (test package): CMake command: cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release/generators/conan_toolchain.cmake" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/."

----Running------
> cmake -G "Unix Makefiles" -DCMAKE_TOOLCHAIN_FILE="/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release/generators/conan_toolchain.cmake" -DCMAKE_POLICY_DEFAULT_CMP0091="NEW" -DCMAKE_BUILD_TYPE="Release" "/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/."
-----------------
-- Using Conan toolchain: /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release/generators/conan_toolchain.cmake
-- The CXX compiler identification is Clang 12.0.0
-- Check for working CXX compiler: /usr/local/bin/clang++
-- Check for working CXX compiler: /usr/local/bin/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: Component target declared 'RPP::rpp'
-- Configuring done
-- Generating done
-- Build files have been written to: /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release
reactiveplusplus/2.0.0 (test package): CMake command: cmake --build "/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release" '--' '-j3'

----Running------
> cmake --build "/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release" '--' '-j3'
-----------------
Scanning dependencies of target test_package
[ 50%] Building CXX object CMakeFiles/test_package.dir/test_package_v2.cpp.o
CMakeFiles/test_package.dir/build.make:62: recipe for target 'CMakeFiles/test_package.dir/test_package_v2.cpp.o' failed
CMakeFiles/Makefile2:75: recipe for target 'CMakeFiles/test_package.dir/all' failed
Makefile:83: recipe for target 'all' failed
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:27: error: call to consteval function 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>::deduce<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>' is not a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:43: note: in instantiation of template class 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>' requested here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:22: note: while substituting template arguments into constraint expression here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:36:14: note: while checking the satisfaction of concept 'observable<const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<rpp::constraint::observable TObservable>
             ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:36:31: note: while substituting template arguments into constraint expression here
    template<rpp::constraint::observable TObservable>
                              ^~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: while checking constraint satisfaction for template 'operator()<const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' required here
    {op(static_cast<TObs>(obs))} -> rpp::constraint::observable;
     ^~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: (skipping 2 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:34: note: non-constexpr function 'declval<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> *>' cannot be used in a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                                 ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:27: error: call to consteval function 'rpp::utils::details::is_observable_t<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>::deduce' is not a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:43: note: in instantiation of template class 'rpp::utils::details::is_observable_t<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:22: note: while substituting template arguments into constraint expression here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:174:78: note: while checking the satisfaction of concept 'observable<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
template<constraint::memory_model MemoryModel /*= memory_model::use_stack*/, rpp::constraint::observable TObservable, rpp::constraint::observable... TObservables>
                                                                             ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:174:95: note: while substituting template arguments into constraint expression here
template<constraint::memory_model MemoryModel /*= memory_model::use_stack*/, rpp::constraint::observable TObservable, rpp::constraint::observable... TObservables>
                                                                                              ^~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:39:16: note: while checking constraint satisfaction for template 'concat<rpp::memory_model::use_stack, rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' required here
        return rpp::source::concat(utils::infinite_repeated_container{std::forward<TObservable>(observable)});
               ^~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:39:16: note: (skipping 3 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:34: note: non-constexpr function 'declval<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>> *>' cannot be used in a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                                 ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:109:31: error: call to consteval function 'rpp::utils::details::extract_observable_type<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>::deduce<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>' is not a constant expression
        using type = decltype(deduce(std::declval<std::decay_t<TObservable>>()));
                              ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:115:1: note: in instantiation of template class 'rpp::utils::details::extract_observable_type<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>' requested here
using extract_observable_type_t = typename details::extract_observable_type<std::decay_t<T>>::type;
^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:141:30: note: in instantiation of template type alias 'extract_observable_type_t' requested here
    return observable<utils::extract_observable_type_t<utils::iterable_value_t<std::decay_t<PackedContainer>>>, concat_strategy<std::decay_t<PackedContainer>>>{std::forward<Args>(args)...};
                             ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:219:26: note: in instantiation of function template specialization 'rpp::details::make_concat_from_iterable<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>, rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
    return rpp::details::make_concat_from_iterable<Container>(std::forward<Iterable>(iterable));
                         ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:39:29: note: in instantiation of function template specialization 'rpp::source::concat<rpp::memory_model::use_stack, rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
        return rpp::source::concat(utils::infinite_repeated_container{std::forward<TObservable>(observable)});
                            ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: in instantiation of function template specialization 'rpp::operators::details::infinite_repeat_t::operator()<const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    {op(static_cast<TObs>(obs))} -> rpp::constraint::observable;
     ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: (skipping 1 context in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:109:38: note: non-constexpr function 'declval<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>' cannot be used in a constant expression
        using type = decltype(deduce(std::declval<std::decay_t<TObservable>>()));
                                     ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:27: error: call to consteval function 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>>::deduce<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>' is not a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:43: note: in instantiation of template class 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>>' requested here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:22: note: while substituting template arguments into constraint expression here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:37: note: while checking the satisfaction of concept 'observable<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>>' requested here
    {op(static_cast<TObs>(obs))} -> rpp::constraint::observable;
                                    ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:34: note: non-constexpr function 'declval<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>> *>' cannot be used in a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                                 ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
4 errors generated.
make[2]: *** [CMakeFiles/test_package.dir/test_package_v2.cpp.o] Error 1
make[1]: *** [CMakeFiles/test_package.dir/all] Error 2
make: *** [all] Error 2
reactiveplusplus/2.0.0 (test package): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
reactiveplusplus/2.0.0 (test package): WARN: Using the new toolchains and generators without specifying a build profile (e.g: -pr:b=default) is discouraged and might cause failures and unexpected behavior
ERROR: reactiveplusplus/2.0.0 (test package): Error in build() method, line 21
	cmake.build()
	ConanException: Error 2 while executing cmake --build "/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/build/Release" '--' '-j3'
********************************************************************************
conan test cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/conanfile.py reactiveplusplus/2.0.0@#cae72a272f84e38c96d49e6e4262fb49 -pr /home/conan/w/prod-v1/bsr/74588/baede/profile_linux_12_libstdcpp_clang_release_64..txt -c tools.system.package_manager:mode=install -c tools.system.package_manager:sudo=True
********************************************************************************
Configuration:
[settings]
arch=x86_64
build_type=Release
compiler=clang
compiler.libcxx=libstdc++
compiler.version=12
os=Linux
[options]
[build_requires]
[env]
[conf]
tools.system.package_manager:mode=install
tools.system.package_manager:sudo=True

reactiveplusplus/2.0.0 (test package): Installing package
Requirements
    reactiveplusplus/2.0.0 from local cache - Cache
Packages
    reactiveplusplus/2.0.0:5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9 - Cache

Installing (downloading, building) binaries...
reactiveplusplus/2.0.0: Already installed!
reactiveplusplus/2.0.0 (test package): Generator cmake_find_package_multi created RPPConfigVersion.cmake
reactiveplusplus/2.0.0 (test package): Generator cmake_find_package_multi created RPPTarget-release.cmake
reactiveplusplus/2.0.0 (test package): Generator cmake_find_package_multi created RPPTargets.cmake
reactiveplusplus/2.0.0 (test package): Generator cmake_find_package_multi created RPPConfig.cmake
reactiveplusplus/2.0.0 (test package): Generator txt created conanbuildinfo.txt
reactiveplusplus/2.0.0 (test package): Generator cmake created conanbuildinfo.cmake
reactiveplusplus/2.0.0 (test package): Aggregating env generators
reactiveplusplus/2.0.0 (test package): Generated conaninfo.txt
reactiveplusplus/2.0.0 (test package): Generated graphinfo
Using lockfile: '/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367/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
reactiveplusplus/2.0.0 (test package): Calling build()

----Running------
> cd '/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367' && cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="OFF" -DCONAN_COMPILER="clang" -DCONAN_COMPILER_VERSION="12" -DCONAN_CXX_FLAGS="-m64" -DCONAN_SHARED_LINKER_FLAGS="-m64" -DCONAN_C_FLAGS="-m64" -DCONAN_LIBCXX="libstdc++" -DCMAKE_INSTALL_PREFIX="/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367/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_PREFIX_PATH="/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367" -DCMAKE_MODULE_PATH="/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -Wno-dev '/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package'
-----------------
-- The C compiler identification is Clang 12.0.0
-- The CXX compiler identification is Clang 12.0.0
-- Check for working C compiler: /usr/local/bin/clang
-- Check for working C compiler: /usr/local/bin/clang -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/local/bin/clang++
-- Check for working CXX compiler: /usr/local/bin/clang++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Conan: called by CMake conan helper
-- Conan: Adjusting output directories
-- Conan: Using cmake targets configuration
-- Conan: Adjusting default RPATHs Conan policies
-- Conan: Adjusting language standard
-- Conan: Compiler Clang>=8, checking major version 12
-- Conan: Checking correct version: 12
-- Conan: C++ stdlib: libstdc++
-- Configuring done
-- Generating done
-- Build files have been written to: /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367

----Running------
> cmake --build '/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367' '--' '-j3'
-----------------
Scanning dependencies of target test_package
[ 50%] Building CXX object test_package/CMakeFiles/test_package.dir/test_package_v2.cpp.o
test_package/CMakeFiles/test_package.dir/build.make:62: recipe for target 'test_package/CMakeFiles/test_package.dir/test_package_v2.cpp.o' failed
CMakeFiles/Makefile2:93: recipe for target 'test_package/CMakeFiles/test_package.dir/all' failed
Makefile:83: 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/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:27: error: call to consteval function 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>::deduce<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>' is not a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:43: note: in instantiation of template class 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>' requested here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:22: note: while substituting template arguments into constraint expression here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:36:14: note: while checking the satisfaction of concept 'observable<const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<rpp::constraint::observable TObservable>
             ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:36:31: note: while substituting template arguments into constraint expression here
    template<rpp::constraint::observable TObservable>
                              ^~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: while checking constraint satisfaction for template 'operator()<const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' required here
    {op(static_cast<TObs>(obs))} -> rpp::constraint::observable;
     ^~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: (skipping 2 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:34: note: non-constexpr function 'declval<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> *>' cannot be used in a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                                 ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:27: error: call to consteval function 'rpp::utils::details::is_observable_t<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>::deduce' is not a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:43: note: in instantiation of template class 'rpp::utils::details::is_observable_t<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:22: note: while substituting template arguments into constraint expression here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:174:78: note: while checking the satisfaction of concept 'observable<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
template<constraint::memory_model MemoryModel /*= memory_model::use_stack*/, rpp::constraint::observable TObservable, rpp::constraint::observable... TObservables>
                                                                             ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:174:95: note: while substituting template arguments into constraint expression here
template<constraint::memory_model MemoryModel /*= memory_model::use_stack*/, rpp::constraint::observable TObservable, rpp::constraint::observable... TObservables>
                                                                                              ^~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:39:16: note: while checking constraint satisfaction for template 'concat<rpp::memory_model::use_stack, rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' required here
        return rpp::source::concat(utils::infinite_repeated_container{std::forward<TObservable>(observable)});
               ^~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:39:16: note: (skipping 3 contexts in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:34: note: non-constexpr function 'declval<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>> *>' cannot be used in a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                                 ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:109:31: error: call to consteval function 'rpp::utils::details::extract_observable_type<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>::deduce<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>' is not a constant expression
        using type = decltype(deduce(std::declval<std::decay_t<TObservable>>()));
                              ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:115:1: note: in instantiation of template class 'rpp::utils::details::extract_observable_type<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>' requested here
using extract_observable_type_t = typename details::extract_observable_type<std::decay_t<T>>::type;
^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:141:30: note: in instantiation of template type alias 'extract_observable_type_t' requested here
    return observable<utils::extract_observable_type_t<utils::iterable_value_t<std::decay_t<PackedContainer>>>, concat_strategy<std::decay_t<PackedContainer>>>{std::forward<Args>(args)...};
                             ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/sources/concat.hpp:219:26: note: in instantiation of function template specialization 'rpp::details::make_concat_from_iterable<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>, rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
    return rpp::details::make_concat_from_iterable<Container>(std::forward<Iterable>(iterable));
                         ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/operators/repeat.hpp:39:29: note: in instantiation of function template specialization 'rpp::source::concat<rpp::memory_model::use_stack, rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>' requested here
        return rpp::source::concat(utils::infinite_repeated_container{std::forward<TObservable>(observable)});
                            ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: in instantiation of function template specialization 'rpp::operators::details::infinite_repeat_t::operator()<const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    {op(static_cast<TObs>(obs))} -> rpp::constraint::observable;
     ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:6: note: (skipping 1 context in backtrace; use -ftemplate-backtrace-limit=0 to see all)
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:109:38: note: non-constexpr function 'declval<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>' cannot be used in a constant expression
        using type = decltype(deduce(std::declval<std::decay_t<TObservable>>()));
                                     ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
In file included from /home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:3:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/rpp.hpp:14:
In file included from /home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/fwd.hpp:19:
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:27: error: call to consteval function 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>>::deduce<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>' is not a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:43: note: in instantiation of template class 'rpp::utils::details::is_observable_t<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>>' requested here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                                          ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:90:22: note: while substituting template arguments into constraint expression here
concept observable = rpp::utils::details::is_observable_t<std::decay_t<T>>::type::value;
                     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:126:37: note: while checking the satisfaction of concept 'observable<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>>>' requested here
    {op(static_cast<TObs>(obs))} -> rpp::constraint::observable;
                                    ^
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:124:41: note: while substituting template arguments into constraint expression here
concept operator_observable_transform = requires(const Op& op, TObs obs)
                                        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:14: note: while checking the satisfaction of concept 'operator_observable_transform<rpp::operators::details::infinite_repeat_t, const rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>> &>' requested here
    template<constraint::operator_observable_transform<const observable&> Op>
             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/observable.hpp:311:26: note: while substituting template arguments into constraint expression here
    template<constraint::operator_observable_transform<const observable&> Op>
                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: while checking constraint satisfaction for template 'operator|<rpp::operators::details::infinite_repeat_t>' required here
    | rpp::operators::repeat()
    ^
/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_package/test_package_v2.cpp:10:5: note: in instantiation of function template specialization 'rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>::operator|<rpp::operators::details::infinite_repeat_t>' requested here
/home/conan/w/prod-v1/bsr/74588/eeece/.conan/data/reactiveplusplus/2.0.0/_/_/package/5ab84d6acfe1f23c4fae0ab88f26e3a396351ac9/include/rpp/observables/fwd.hpp:82:34: note: non-constexpr function 'declval<rpp::observable<int, rpp::details::concat_strategy<rpp::utils::infinite_repeated_container<rpp::observable<int, rpp::observable_chain_strategy<rpp::operators::details::map_t<rpp::details::from_callable_invoke>, rpp::details::from_iterable_strategy<std::array<int (*)(), 1>, rpp::schedulers::current_thread>>>>>> *>' cannot be used in a constant expression
    using type = decltype(deduce(std::declval<std::decay_t<TObservable>*>()));
                                 ^
/usr/local/bin/../lib/gcc/x86_64-linux-gnu/10.3.0/../../../../include/c++/10.3.0/type_traits:2335:10: note: declared here
    auto declval() noexcept -> decltype(__declval<_Tp>(0))
         ^
4 errors generated.
make[2]: *** [test_package/CMakeFiles/test_package.dir/test_package_v2.cpp.o] Error 1
make[1]: *** [test_package/CMakeFiles/test_package.dir/all] Error 2
make: *** [all] Error 2
reactiveplusplus/2.0.0 (test package): WARN: 
     ************************************************
     The 'cmake_find_package_multi' generator is deprecated.
     Please update your code and remove it.
     *************************************************

reactiveplusplus/2.0.0 (test package): WARN: 
     ************************************************
     The 'cmake' generator is deprecated.
     Please update your code and remove it.
     *************************************************

reactiveplusplus/2.0.0 (test package): WARN: **** The 'from conans import CMake' helper is deprecated. Please update your code and remove it. ****
ERROR: reactiveplusplus/2.0.0 (test package): Error in build() method, line 12
	cmake.build()
	ConanException: Error 2 while executing cmake --build '/home/conan/w/prod-v1/bsr/cci-6eaec1a6/recipes/reactiveplusplus/all/test_v1_package/build/010a570ff7d501e012ed432efc43a97348a5b367' '--' '-j3'