/usr/bin/ld: libtask_futures_executors_await.a(strand.cpp.o): in function `await::executors::detail::Strand::Execute(fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> >&&)':
/workspace/concurrency-course/tasks/futures/executors/await/executors/strand.cpp:18: undefined reference to `await::executors::LockFreeStack<fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> > >::Push(fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> >)'
/usr/bin/ld: libtask_futures_executors_await.a(strand.cpp.o): in function `operator()':
/workspace/concurrency-course/tasks/futures/executors/await/executors/strand.cpp:22: undefined reference to `await::executors::LockFreeStack<fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> > >::PopAll()'
/usr/bin/ld: /workspace/concurrency-course/tasks/futures/executors/await/executors/strand.cpp:26: undefined reference to `await::executors::LockFreeStack<fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> > >::Pop()'
/usr/bin/ld: /workspace/concurrency-course/tasks/futures/executors/await/executors/strand.cpp:27: undefined reference to `await::executors::LockFreeStack<fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> > >::Push(await::executors::Node<fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> > >*)'
/usr/bin/ld: /workspace/concurrency-course/tasks/futures/executors/await/executors/strand.cpp:29: undefined reference to `await::executors::LockFreeStack<fu2::abi_400::detail::function<fu2::abi_400::detail::config<true, false, fu2::capacity_default>, fu2::abi_400::detail::property<true, false, void ()> > >::Pop()'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[3]: *** [tasks/futures/executors/CMakeFiles/task_futures_executors_executors_unit_tests.dir/build.make:150: tasks/futures/executors/bin/task_futures_executors_executors_unit_tests] Error 1
make[2]: *** [CMakeFiles/Makefile2:3992: tasks/futures/executors/CMakeFiles/task_futures_executors_executors_unit_tests.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:3999: tasks/futures/executors/CMakeFiles/task_futures_executors_executors_unit_tests.dir/rule] Error 2
make: *** [Makefile:1509: task_futures_executors_executors_unit_tests] Error 2
Command '['make', '-j', '8', 'task_futures_executors_executors_unit_tests']' returned non-zero exit status 2.