==================
WARNING: ThreadSanitizer: data race (pid=59095)
  Read of size 8 at 0x7b54000108b8 by thread T4:
    #0 std::__1::shared_ptr<couchbase::io::http_session>::get() const memory:3826 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x57b4f2)
    #1 std::__1::shared_ptr<couchbase::io::http_session>::operator bool() const memory:3837 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x57b498)
    #2 couchbase::operations::http_command<couchbase::operations::http_noop_request>::cancel() http_command.hxx:83 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5843f5)
    #3 couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code)::operator()(std::__1::error_code) const http_command.hxx:77 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x584381)
    #4 asio::detail::binder1<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), std::__1::error_code>::operator()() bind_handler.hpp:170 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5842cb)
    #5 void asio::asio_handler_invoke<asio::detail::binder1<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), std::__1::error_code> >(couchbase::operations::http_noop_request&, ...) handler_invoke_hook.hpp:87 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x584238)
    #6 void asio_handler_invoke_helpers::invoke<asio::detail::binder1<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), std::__1::error_code>, couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code)>(couchbase::operations::http_noop_request&, asio::detail::binder1<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), std::__1::error_code>&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5840c1)
    #7 void asio::detail::handler_work<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), asio::any_io_executor, void>::complete<asio::detail::binder1<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), std::__1::error_code> >(asio::detail::binder1<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), std::__1::error_code>&, couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code)&) handler_work.hpp:511 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x583ccc)
    #8 asio::detail::wait_handler<couchbase::operations::http_command<couchbase::operations::http_noop_request>::start(cxx_function::unique_function<void (std::__1::error_code, couchbase::io::http_response&&)>&&)::'lambda'(std::__1::error_code), asio::any_io_executor>::do_complete(void*, asio::detail::scheduler_operation*, std::__1::error_code const&, unsigned long) wait_handler.hpp:75 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5838b1)
    #9 asio::detail::scheduler_operation::complete(void*, std::__1::error_code const&, unsigned long) scheduler_operation.hpp:39 (client_tests:x86_64+0x10006a194)

  Previous write of size 8 at 0x7b54000108b8 by thread T1 (mutexes: write M1190):
    #0 std::__1::enable_if<(is_move_constructible<couchbase::io::http_session*>::value) && (is_move_assignable<couchbase::io::http_session*>::value), void>::type std::__1::swap<couchbase::io::http_session*>(couchbase::io::http_session*&, couchbase::io::http_session*&) type_traits:3723 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x55a919)
    #1 std::__1::shared_ptr<couchbase::io::http_session>::swap(std::__1::shared_ptr<couchbase::io::http_session>&) memory:4338 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x562bef)
    #2 std::__1::shared_ptr<couchbase::io::http_session>::operator=(std::__1::shared_ptr<couchbase::io::http_session>&&) memory:4245 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x541315)
    #3 couchbase::operations::http_command<couchbase::operations::http_noop_request>::send_to(std::__1::shared_ptr<couchbase::io::http_session>) http_command.hxx:156 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x541d3c)
    #4 void couchbase::io::http_session_manager::ping<couchbase::ping_collector>(std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::shared_ptr<couchbase::ping_collector>, couchbase::cluster_credentials const&) http_session_manager.hxx:146 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50ca60)
    #5 couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0::operator()() cluster.cxx:92 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b3ff)
    #6 std::__1::result_of<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0 ()>::type asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> >::operator()<>() bind_executor.hpp:406 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b07f)
    #7 asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >::operator()() bind_handler.hpp:59 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b018)
    #8 void asio::asio_handler_invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, ...) handler_invoke_hook.hpp:87 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50af78)
    #9 void asio_handler_invoke_helpers::invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> >&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50af21)
    #10 void asio::detail::asio_handler_invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >*) bind_handler.hpp:110 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50ae58)
    #11 void asio_handler_invoke_helpers::invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x509e5b)
    #12 asio::detail::executor_op<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, std::__1::allocator<void>, asio::detail::scheduler_operation>::do_complete(void*, asio::detail::scheduler_operation*, std::__1::error_code const&, unsigned long) executor_op.hpp:69 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5947d8)
    #13 asio::detail::scheduler_operation::complete(void*, std::__1::error_code const&, unsigned long) scheduler_operation.hpp:39 (client_tests:x86_64+0x10006a194)

  Location is heap block of size 624 at 0x7b5400010680 allocated by thread T1:
    #0 operator new(unsigned long) <null>:3 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x7831b)
    #1 std::__1::__libcpp_allocate(unsigned long, unsigned long) new:253 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50d525)
    #2 std::__1::allocator<std::__1::__shared_ptr_emplace<couchbase::operations::http_command<couchbase::operations::http_noop_request>, std::__1::allocator<couchbase::operations::http_command<couchbase::operations::http_noop_request> > > >::allocate(unsigned long, void const*) memory:1869 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x57f05d)
    #3 std::__1::enable_if<!(is_array<couchbase::operations::http_command<couchbase::operations::http_noop_request> >::value), std::__1::shared_ptr<couchbase::operations::http_command<couchbase::operations::http_noop_request> > >::type std::__1::make_shared<couchbase::operations::http_command<couchbase::operations::http_noop_request>, asio::io_context&, couchbase::operations::http_noop_request&, std::__1::shared_ptr<couchbase::tracing::request_tracer>&, couchbase::metrics::meter*&>(asio::io_context&, couchbase::operations::http_noop_request&, std::__1::shared_ptr<couchbase::tracing::request_tracer>&, couchbase::metrics::meter*&) memory:4404 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x54155e)
    #4 void couchbase::io::http_session_manager::ping<couchbase::ping_collector>(std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::shared_ptr<couchbase::ping_collector>, couchbase::cluster_credentials const&) http_session_manager.hxx:123 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50c8ef)
    #5 couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0::operator()() cluster.cxx:92 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b3ff)
    #6 std::__1::result_of<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0 ()>::type asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> >::operator()<>() bind_executor.hpp:406 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b07f)
    #7 asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >::operator()() bind_handler.hpp:59 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b018)
    #8 void asio::asio_handler_invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, ...) handler_invoke_hook.hpp:87 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50af78)
    #9 void asio_handler_invoke_helpers::invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> >&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50af21)
    #10 void asio::detail::asio_handler_invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >*) bind_handler.hpp:110 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50ae58)
    #11 void asio_handler_invoke_helpers::invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x509e5b)
    #12 asio::detail::executor_op<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, std::__1::allocator<void>, asio::detail::scheduler_operation>::do_complete(void*, asio::detail::scheduler_operation*, std::__1::error_code const&, unsigned long) executor_op.hpp:69 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5947d8)
    #13 asio::detail::scheduler_operation::complete(void*, std::__1::error_code const&, unsigned long) scheduler_operation.hpp:39 (client_tests:x86_64+0x10006a194)

  Mutex M1190 (0x7b5c000002c8) created at:
    #0 pthread_mutex_lock <null>:3 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x3d65e)
    #1 std::__1::mutex::lock() <null>:2 (libc++.1.dylib:x86_64+0x36538)
    #2 couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0::operator()() cluster.cxx:92 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b3ff)
    #3 std::__1::result_of<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0 ()>::type asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> >::operator()<>() bind_executor.hpp:406 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b07f)
    #4 asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >::operator()() bind_handler.hpp:59 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50b018)
    #5 void asio::asio_handler_invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, ...) handler_invoke_hook.hpp:87 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50af78)
    #6 void asio_handler_invoke_helpers::invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> >&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50af21)
    #7 void asio::detail::asio_handler_invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >*) bind_handler.hpp:110 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x50ae58)
    #8 void asio_handler_invoke_helpers::invoke<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > > >(asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&, asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >&) handler_invoke_helpers.hpp:54 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x509e5b)
    #9 asio::detail::executor_op<asio::detail::binder0<asio::executor_binder<couchbase::cluster::ping(std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::optional<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::set<couchbase::service_type, std::__1::less<couchbase::service_type>, std::__1::allocator<couchbase::service_type> >, std::__1::function<void (couchbase::diag::ping_result)>)::$_0, asio::io_context::basic_executor_type<std::__1::allocator<void>, 0u> > >, std::__1::allocator<void>, asio::detail::scheduler_operation>::do_complete(void*, asio::detail::scheduler_operation*, std::__1::error_code const&, unsigned long) executor_op.hpp:69 (libtransactions_cxx.2.0.0.beta.1.dylib:x86_64+0x5947d8)
    #10 asio::detail::scheduler_operation::complete(void*, std::__1::error_code const&, unsigned long) scheduler_operation.hpp:39 (client_tests:x86_64+0x10006a194)

  Thread T4 (tid=4264930, running) created by main thread at:
    #0 pthread_create <null>:3 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x2d8fd)
    #1 std::__1::__libcpp_thread_create(_opaque_pthread_t**, void* (*)(void*), void*) __threading_support:336 (client_tests:x86_64+0x100077913)

  Thread T1 (tid=4264927, running) created by main thread at:
    #0 pthread_create <null>:3 (libclang_rt.tsan_osx_dynamic.dylib:x86_64h+0x2d8fd)
    #1 std::__1::__libcpp_thread_create(_opaque_pthread_t**, void* (*)(void*), void*) __threading_support:336 (client_tests:x86_64+0x100077913)

SUMMARY: ThreadSanitizer: data race memory:3826 in std::__1::shared_ptr<couchbase::io::http_session>::get() const
==================