ci: tidy job is producing output #33256

issue fanquake openend this issue on August 26, 2025

fanquake commented at 10:50 am on August 26, 2025: member

master (6ca6f3b37b992591726bd13b494369bee3bd6468) https://cirrus-ci.com/task/5658586602274816:

 0[17:17:19.943] [108/715][22.0s] clang-tidy-20 -p=/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu -quiet -load=/tidy-build/libbitcoin-tidy.so /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/capnp/echo.capnp.proxy-server.c++
 1[17:17:34.032] /usr/include/kj/async-inl.h:609:37: warning: The left operand of '+' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]
 2[17:17:34.032]   609 |       return *(void**)(*(char**)obj + voff);
 3[17:17:34.032]       |                                     ^
 4[17:17:34.032] /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/capnp/echo.capnp.proxy-server.c++:23:12: note: Calling 'serverInvoke<mp::ProxyServer<ipc::capnp::messages::Echo>, capnp::CallContext<ipc::capnp::messages::Echo::EchoParams, ipc::capnp::messages::Echo::EchoResults>, mp::ServerField<0, mp::Accessor<mp::echo_fields::Context, 17>, mp::ServerField<1, mp::Accessor<mp::echo_fields::Echo, 17>, mp::ServerRet<mp::Accessor<mp::echo_fields::Result, 18>, mp::ServerCall>>>>'
 5[17:17:34.032]    23 |     return serverInvoke(*this, call_context, MakeServerField<0, Accessor<echo_fields::Context, FIELD_IN | FIELD_BOXED>>(MakeServerField<1, Accessor<echo_fields::Echo, FIELD_IN | FIELD_BOXED>>(Make<ServerRet, Accessor<echo_fields::Result, FIELD_OUT | FIELD_BOXED>>(ServerCall()))));
 6[17:17:34.032]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 7[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:16: note: Calling 'ReplaceVoid<(lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:28), (lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:718:13)>'
 8[17:17:34.032]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
 9[17:17:34.032]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10[17:17:34.032]   718 |             [&]() { return kj::Promise<CallContext>(kj::mv(call_context)); })
11[17:17:34.032]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:19: note: 'is_same_v' is false
13[17:17:34.032]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
14[17:17:34.032]       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
15[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:5: note: Taking false branch
16[17:17:34.032]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
17[17:17:34.032]       |     ^
18[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:682:16: note: Calling 'operator()'
19[17:17:34.032]   682 |         return fn();
20[17:17:34.032]       |                ^~~~
21[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:43: note: Calling 'ServerField::invoke'
22[17:17:34.032]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
23[17:17:34.032]       |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:539:16: note: Calling 'PassField<mp::Accessor<mp::echo_fields::Context, 17>, mp::ServerInvokeContext<mp::ProxyServer<ipc::capnp::messages::Echo>, capnp::CallContext<ipc::capnp::messages::Echo::EchoParams, ipc::capnp::messages::Echo::EchoResults>>, mp::ServerField<1, mp::Accessor<mp::echo_fields::Echo, 17>, mp::ServerRet<mp::Accessor<mp::echo_fields::Result, 18>, mp::ServerCall>>, mp::TypeList<const std::basic_string<char> &>>'
25[17:17:34.032]   539 |         return PassField<Accessor>(Priority<2>(),
26[17:17:34.032]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27[17:17:34.032]   540 |             typename Split<argc, ArgTypes>::First(),
28[17:17:34.032]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
29[17:17:34.032]   541 |             server_context,
30[17:17:34.032]       |             ~~~~~~~~~~~~~~~
31[17:17:34.032]   542 |             this->parent(),
32[17:17:34.032]       |             ~~~~~~~~~~~~~~~
33[17:17:34.032]   543 |             typename Split<argc, ArgTypes>::Second(),
34[17:17:34.032]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
35[17:17:34.032]   544 |             std::forward<Args>(args)...);
36[17:17:34.032]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
37[17:17:34.032] /ci_container_base/src/ipc/libmultiprocess/include/mp/type-context.h:136:12: note: Calling 'CapabilityServerSet::getLocalServer'
38[17:17:34.032]   136 |     return server.m_context.connection->m_threads.getLocalServer(thread_client)
39[17:17:34.032]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
40[17:17:34.032] /usr/include/capnp/capability.h:1274:10: note: Calling 'Promise::then'
41[17:17:34.032]  1274 |   return getLocalServerInternal(client)
42[17:17:34.032]       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
43[17:17:34.032]  1275 |       .then([](void* server) -> kj::Maybe<typename T::Server&> {
44[17:17:34.032]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
45[17:17:34.032]  1276 |     if (server == nullptr) {
46[17:17:34.032]       |     ~~~~~~~~~~~~~~~~~~~~~~~~
47[17:17:34.032]  1277 |       return nullptr;
48[17:17:34.032]       |       ~~~~~~~~~~~~~~~
49[17:17:34.032]  1278 |     } else {
50[17:17:34.032]       |     ~~~~~~~~
51[17:17:34.032]  1279 |       return *reinterpret_cast<typename T::Server*>(server);
52[17:17:34.032]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
53[17:17:34.032]  1280 |     }
54[17:17:34.032]       |     ~
55[17:17:34.032]  1281 |   });
56[17:17:34.032]       |   ~~
57[17:17:34.032] /usr/include/kj/async-inl.h:1295:32: note: Calling 'GetFunctorStartAddress::apply'
58[17:17:34.032]  1295 |   void* continuationTracePtr = _::GetFunctorStartAddress<_::FixVoid<T>&&>::apply(func);
59[17:17:34.032]       |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
60[17:17:34.032] /usr/include/kj/async-inl.h:677:12: note: Calling 'PtmfHelper::apply'
61[17:17:34.032]   677 |     return PtmfHelper::from<ReturnType, Decay<Func>, ParamTypes...>(
62[17:17:34.032]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
63[17:17:34.032]   678 |         &Decay<Func>::operator()).apply(&func);
64[17:17:34.032]       |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
65[17:17:34.032] /usr/include/kj/async-inl.h:606:9: note: Assuming the condition is true
66[17:17:34.032]   606 |     if (voff & 1) {
67[17:17:34.032]       |         ^~~~~~~~
68[17:17:34.032] /usr/include/kj/async-inl.h:606:5: note: Taking true branch
69[17:17:34.032]   606 |     if (voff & 1) {
70[17:17:34.032]       |     ^
71[17:17:34.032] /usr/include/kj/async-inl.h:609:37: note: The left operand of '+' is a garbage value
72[17:17:34.032]   609 |       return *(void**)(*(char**)obj + voff);
73[17:17:34.032]       |                        ~~~~~~~~~~~~ ^
74[17:17:34.032] 1 warning generated.

 0[17:30:54.725] [683/715][156.9s] clang-tidy-20 -p=/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu -quiet -load=/tidy-build/libbitcoin-tidy.so /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/capnp/mining.capnp.proxy-server.c++
 1[17:30:54.725] /usr/include/kj/async-inl.h:609:37: warning: The left operand of '+' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]
 2[17:30:54.725]   609 |       return *(void**)(*(char**)obj + voff);
 3[17:30:54.725]       |                                     ^
 4[17:30:54.725] /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/capnp/mining.capnp.proxy-server.c++:68:12: note: Calling 'serverInvoke<mp::ProxyServer<ipc::capnp::messages::BlockTemplate>, capnp::CallContext<ipc::capnp::messages::BlockTemplate::WaitNextParams, ipc::capnp::messages::BlockTemplate::WaitNextResults>, mp::ServerField<0, mp::Accessor<mp::mining_fields::Context, 17>, mp::ServerField<1, mp::Accessor<mp::mining_fields::Options, 17>, mp::ServerRet<mp::Accessor<mp::mining_fields::Result, 18>, mp::ServerCall>>>>'
 5[17:30:54.725]    68 |     return serverInvoke(*this, call_context, MakeServerField<0, Accessor<mining_fields::Context, FIELD_IN | FIELD_BOXED>>(MakeServerField<1, Accessor<mining_fields::Options, FIELD_IN | FIELD_BOXED>>(Make<ServerRet, Accessor<mining_fields::Result, FIELD_OUT | FIELD_BOXED>>(ServerCall()))));
 6[17:30:54.725]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 7[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:16: note: Calling 'ReplaceVoid<(lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:28), (lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:718:13)>'
 8[17:30:54.725]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
 9[17:30:54.725]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10[17:30:54.725]   718 |             [&]() { return kj::Promise<CallContext>(kj::mv(call_context)); })
11[17:30:54.725]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:19: note: 'is_same_v' is false
13[17:30:54.725]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
14[17:30:54.725]       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
15[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:5: note: Taking false branch
16[17:30:54.725]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
17[17:30:54.725]       |     ^
18[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:682:16: note: Calling 'operator()'
19[17:30:54.725]   682 |         return fn();
20[17:30:54.725]       |                ^~~~
21[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:43: note: Calling 'ServerField::invoke'
22[17:30:54.725]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
23[17:30:54.725]       |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:539:16: note: Calling 'PassField<mp::Accessor<mp::mining_fields::Context, 17>, mp::ServerInvokeContext<mp::ProxyServer<ipc::capnp::messages::BlockTemplate>, capnp::CallContext<ipc::capnp::messages::BlockTemplate::WaitNextParams, ipc::capnp::messages::BlockTemplate::WaitNextResults>>, mp::ServerField<1, mp::Accessor<mp::mining_fields::Options, 17>, mp::ServerRet<mp::Accessor<mp::mining_fields::Result, 18>, mp::ServerCall>>, mp::TypeList<node::BlockWaitOptions>>'
25[17:30:54.725]   539 |         return PassField<Accessor>(Priority<2>(),
26[17:30:54.725]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27[17:30:54.725]   540 |             typename Split<argc, ArgTypes>::First(),
28[17:30:54.725]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
29[17:30:54.725]   541 |             server_context,
30[17:30:54.725]       |             ~~~~~~~~~~~~~~~
31[17:30:54.725]   542 |             this->parent(),
32[17:30:54.725]       |             ~~~~~~~~~~~~~~~
33[17:30:54.725]   543 |             typename Split<argc, ArgTypes>::Second(),
34[17:30:54.725]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
35[17:30:54.725]   544 |             std::forward<Args>(args)...);
36[17:30:54.725]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
37[17:30:54.725] /ci_container_base/src/ipc/libmultiprocess/include/mp/type-context.h:136:12: note: Calling 'CapabilityServerSet::getLocalServer'
38[17:30:54.725]   136 |     return server.m_context.connection->m_threads.getLocalServer(thread_client)
39[17:30:54.725]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
40[17:30:54.725] /usr/include/capnp/capability.h:1274:10: note: Calling 'Promise::then'
41[17:30:54.725]  1274 |   return getLocalServerInternal(client)
42[17:30:54.725]       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
43[17:30:54.725]  1275 |       .then([](void* server) -> kj::Maybe<typename T::Server&> {
44[17:30:54.725]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
45[17:30:54.725]  1276 |     if (server == nullptr) {
46[17:30:54.725]       |     ~~~~~~~~~~~~~~~~~~~~~~~~
47[17:30:54.725]  1277 |       return nullptr;
48[17:30:54.725]       |       ~~~~~~~~~~~~~~~
49[17:30:54.725]  1278 |     } else {
50[17:30:54.725]       |     ~~~~~~~~
51[17:30:54.725]  1279 |       return *reinterpret_cast<typename T::Server*>(server);
52[17:30:54.725]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
53[17:30:54.725]  1280 |     }
54[17:30:54.725]       |     ~
55[17:30:54.725]  1281 |   });
56[17:30:54.725]       |   ~~
57[17:30:54.725] /usr/include/kj/async-inl.h:1295:32: note: Calling 'GetFunctorStartAddress::apply'
58[17:30:54.725]  1295 |   void* continuationTracePtr = _::GetFunctorStartAddress<_::FixVoid<T>&&>::apply(func);
59[17:30:54.725]       |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
60[17:30:54.725] /usr/include/kj/async-inl.h:677:12: note: Calling 'PtmfHelper::apply'
61[17:30:54.725]   677 |     return PtmfHelper::from<ReturnType, Decay<Func>, ParamTypes...>(
62[17:30:54.725]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
63[17:30:54.725]   678 |         &Decay<Func>::operator()).apply(&func);
64[17:30:54.725]       |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
65[17:30:54.725] /usr/include/kj/async-inl.h:606:9: note: Assuming the condition is true
66[17:30:54.725]   606 |     if (voff & 1) {
67[17:30:54.725]       |         ^~~~~~~~
68[17:30:54.725] /usr/include/kj/async-inl.h:606:5: note: Taking true branch
69[17:30:54.725]   606 |     if (voff & 1) {
70[17:30:54.725]       |     ^
71[17:30:54.725] /usr/include/kj/async-inl.h:609:37: note: The left operand of '+' is a garbage value
72[17:30:54.725]   609 |       return *(void**)(*(char**)obj + voff);
73[17:30:54.725]       |                        ~~~~~~~~~~~~ ^
74[17:30:54.725] 1 warning generated.

  0[17:31:39.220] [713/715][30.6s] clang-tidy-20 -p=/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu -quiet -load=/tidy-build/libbitcoin-tidy.so /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/capnp/init.capnp.proxy-server.c++
  1[17:31:45.233] /usr/include/kj/async-inl.h:609:37: warning: The left operand of '+' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]
  2[17:31:45.233]   609 |       return *(void**)(*(char**)obj + voff);
  3[17:31:45.233]       |                                     ^
  4[17:31:45.233] /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/capnp/init.capnp.proxy-server.c++:26:12: note: Calling 'serverInvoke<mp::ProxyServer<ipc::capnp::messages::Init>, capnp::CallContext<ipc::capnp::messages::Init::MakeMiningParams, ipc::capnp::messages::Init::MakeMiningResults>, mp::ServerField<0, mp::Accessor<mp::init_fields::Context, 17>, mp::ServerRet<mp::Accessor<mp::init_fields::Result, 18>, mp::ServerCall>>>'
  5[17:31:45.233]    26 |     return serverInvoke(*this, call_context, MakeServerField<0, Accessor<init_fields::Context, FIELD_IN | FIELD_BOXED>>(Make<ServerRet, Accessor<init_fields::Result, FIELD_OUT | FIELD_BOXED>>(ServerCall())));
  6[17:31:45.233]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  7[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:16: note: Calling 'ReplaceVoid<(lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:28), (lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:718:13)>'
  8[17:31:45.233]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
  9[17:31:45.233]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 10[17:31:45.233]   718 |             [&]() { return kj::Promise<CallContext>(kj::mv(call_context)); })
 11[17:31:45.233]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 12[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:19: note: 'is_same_v' is false
 13[17:31:45.233]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
 14[17:31:45.233]       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 15[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:5: note: Taking false branch
 16[17:31:45.233]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
 17[17:31:45.233]       |     ^
 18[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:682:16: note: Calling 'operator()'
 19[17:31:45.233]   682 |         return fn();
 20[17:31:45.233]       |                ^~~~
 21[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:43: note: Calling 'ServerField::invoke'
 22[17:31:45.233]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
 23[17:31:45.233]       |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 24[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:539:16: note: Calling 'PassField<mp::Accessor<mp::init_fields::Context, 17>, mp::ServerInvokeContext<mp::ProxyServer<ipc::capnp::messages::Init>, capnp::CallContext<ipc::capnp::messages::Init::MakeMiningParams, ipc::capnp::messages::Init::MakeMiningResults>>, mp::ServerRet<mp::Accessor<mp::init_fields::Result, 18>, mp::ServerCall>, mp::TypeList<>>'
 25[17:31:45.233]   539 |         return PassField<Accessor>(Priority<2>(),
 26[17:31:45.233]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 27[17:31:45.233]   540 |             typename Split<argc, ArgTypes>::First(),
 28[17:31:45.233]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 29[17:31:45.233]   541 |             server_context,
 30[17:31:45.233]       |             ~~~~~~~~~~~~~~~
 31[17:31:45.233]   542 |             this->parent(),
 32[17:31:45.233]       |             ~~~~~~~~~~~~~~~
 33[17:31:45.233]   543 |             typename Split<argc, ArgTypes>::Second(),
 34[17:31:45.233]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 35[17:31:45.233]   544 |             std::forward<Args>(args)...);
 36[17:31:45.233]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 37[17:31:45.233] /ci_container_base/src/ipc/libmultiprocess/include/mp/type-context.h:136:12: note: Calling 'CapabilityServerSet::getLocalServer'
 38[17:31:45.233]   136 |     return server.m_context.connection->m_threads.getLocalServer(thread_client)
 39[17:31:45.233]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 40[17:31:45.233] /usr/include/capnp/capability.h:1274:10: note: Calling 'Promise::then'
 41[17:31:45.233]  1274 |   return getLocalServerInternal(client)
 42[17:31:45.233]       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 43[17:31:45.233]  1275 |       .then([](void* server) -> kj::Maybe<typename T::Server&> {
 44[17:31:45.233]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 45[17:31:45.233]  1276 |     if (server == nullptr) {
 46[17:31:45.233]       |     ~~~~~~~~~~~~~~~~~~~~~~~~
 47[17:31:45.233]  1277 |       return nullptr;
 48[17:31:45.233]       |       ~~~~~~~~~~~~~~~
 49[17:31:45.233]  1278 |     } else {
 50[17:31:45.233]       |     ~~~~~~~~
 51[17:31:45.233]  1279 |       return *reinterpret_cast<typename T::Server*>(server);
 52[17:31:45.233]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 53[17:31:45.233]  1280 |     }
 54[17:31:45.233]       |     ~
 55[17:31:45.233]  1281 |   });
 56[17:31:45.233]       |   ~~
 57[17:31:45.233] /usr/include/kj/async-inl.h:1295:32: note: Calling 'GetFunctorStartAddress::apply'
 58[17:31:45.233]  1295 |   void* continuationTracePtr = _::GetFunctorStartAddress<_::FixVoid<T>&&>::apply(func);
 59[17:31:45.233]       |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 60[17:31:45.233] /usr/include/kj/async-inl.h:677:12: note: Calling 'PtmfHelper::apply'
 61[17:31:45.233]   677 |     return PtmfHelper::from<ReturnType, Decay<Func>, ParamTypes...>(
 62[17:31:45.233]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 63[17:31:45.233]   678 |         &Decay<Func>::operator()).apply(&func);
 64[17:31:45.233]       |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 65[17:31:45.233] /usr/include/kj/async-inl.h:606:9: note: Assuming the condition is true
 66[17:31:45.233]   606 |     if (voff & 1) {
 67[17:31:45.233]       |         ^~~~~~~~
 68[17:31:45.233] /usr/include/kj/async-inl.h:606:5: note: Taking true branch
 69[17:31:45.233]   606 |     if (voff & 1) {
 70[17:31:45.233]       |     ^
 71[17:31:45.233] /usr/include/kj/async-inl.h:609:37: note: The left operand of '+' is a garbage value
 72[17:31:45.233]   609 |       return *(void**)(*(char**)obj + voff);
 73[17:31:45.233]       |                        ~~~~~~~~~~~~ ^
 74[17:31:45.233] 2 warnings generated.
 75[17:31:45.233] 
 76[17:31:45.233] [714/715][167.1s] clang-tidy-20 -p=/ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu -quiet -load=/tidy-build/libbitcoin-tidy.so /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/libmultiprocess/test/mp/test/foo.capnp.proxy-server.c++
 77[17:32:33.147] /usr/include/kj/async-inl.h:609:37: warning: The left operand of '+' is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]
 78[17:32:33.147]   609 |       return *(void**)(*(char**)obj + voff);
 79[17:32:33.147]       |                                     ^
 80[17:32:33.147] /ci_container_base/ci/scratch/build-x86_64-pc-linux-gnu/src/ipc/libmultiprocess/test/mp/test/foo.capnp.proxy-server.c++:95:12: note: Calling 'serverInvoke<mp::ProxyServer<mp::test::messages::FooFn>, capnp::CallContext<mp::test::messages::FooFn::CallParams, mp::test::messages::FooFn::CallResults>, mp::ServerField<0, mp::Accessor<mp::foo_fields::Context, 17>, mp::ServerRet<mp::Accessor<mp::foo_fields::Result, 2>, mp::ServerCall>>>'
 81[17:32:33.147]    95 |     return serverInvoke(*this, call_context, MakeServerField<0, Accessor<foo_fields::Context, FIELD_IN | FIELD_BOXED>>(Make<ServerRet, Accessor<foo_fields::Result, FIELD_OUT>>(ServerCall())));
 82[17:32:33.147]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 83[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:16: note: Calling 'ReplaceVoid<(lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:28), (lambda at /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:718:13)>'
 84[17:32:33.147]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
 85[17:32:33.147]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 86[17:32:33.147]   718 |             [&]() { return kj::Promise<CallContext>(kj::mv(call_context)); })
 87[17:32:33.147]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 88[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:19: note: 'is_same_v' is false
 89[17:32:33.147]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
 90[17:32:33.147]       |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 91[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:678:5: note: Taking false branch
 92[17:32:33.147]   678 |     if constexpr (std::is_same_v<decltype(fn()), void>) {
 93[17:32:33.147]       |     ^
 94[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:682:16: note: Calling 'operator()'
 95[17:32:33.147]   682 |         return fn();
 96[17:32:33.147]       |                ^~~~
 97[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:717:43: note: Calling 'ServerField::invoke'
 98[17:32:33.147]   717 |         return ReplaceVoid([&]() { return fn.invoke(server_context, ArgList()); },
 99[17:32:33.147]       |                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
100[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/proxy-types.h:539:16: note: Calling 'PassField<mp::Accessor<mp::foo_fields::Context, 17>, mp::ServerInvokeContext<mp::ProxyServer<mp::test::messages::FooFn>, capnp::CallContext<mp::test::messages::FooFn::CallParams, mp::test::messages::FooFn::CallResults>>, mp::ServerRet<mp::Accessor<mp::foo_fields::Result, 2>, mp::ServerCall>, mp::TypeList<>>'
101[17:32:33.147]   539 |         return PassField<Accessor>(Priority<2>(),
102[17:32:33.147]       |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
103[17:32:33.147]   540 |             typename Split<argc, ArgTypes>::First(),
104[17:32:33.147]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
105[17:32:33.147]   541 |             server_context,
106[17:32:33.147]       |             ~~~~~~~~~~~~~~~
107[17:32:33.147]   542 |             this->parent(),
108[17:32:33.147]       |             ~~~~~~~~~~~~~~~
109[17:32:33.147]   543 |             typename Split<argc, ArgTypes>::Second(),
110[17:32:33.147]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
111[17:32:33.147]   544 |             std::forward<Args>(args)...);
112[17:32:33.147]       |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
113[17:32:33.147] /ci_container_base/src/ipc/libmultiprocess/include/mp/type-context.h:136:12: note: Calling 'CapabilityServerSet::getLocalServer'
114[17:32:33.147]   136 |     return server.m_context.connection->m_threads.getLocalServer(thread_client)
115[17:32:33.147]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
116[17:32:33.147] /usr/include/capnp/capability.h:1274:10: note: Calling 'Promise::then'
117[17:32:33.147]  1274 |   return getLocalServerInternal(client)
118[17:32:33.147]       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
119[17:32:33.147]  1275 |       .then([](void* server) -> kj::Maybe<typename T::Server&> {
120[17:32:33.147]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
121[17:32:33.147]  1276 |     if (server == nullptr) {
122[17:32:33.147]       |     ~~~~~~~~~~~~~~~~~~~~~~~~
123[17:32:33.147]  1277 |       return nullptr;
124[17:32:33.147]       |       ~~~~~~~~~~~~~~~
125[17:32:33.147]  1278 |     } else {
126[17:32:33.147]       |     ~~~~~~~~
127[17:32:33.147]  1279 |       return *reinterpret_cast<typename T::Server*>(server);
128[17:32:33.147]       |       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
129[17:32:33.147]  1280 |     }
130[17:32:33.147]       |     ~
131[17:32:33.147]  1281 |   });
132[17:32:33.147]       |   ~~
133[17:32:33.147] /usr/include/kj/async-inl.h:1295:32: note: Calling 'GetFunctorStartAddress::apply'
134[17:32:33.147]  1295 |   void* continuationTracePtr = _::GetFunctorStartAddress<_::FixVoid<T>&&>::apply(func);
135[17:32:33.147]       |                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
136[17:32:33.147] /usr/include/kj/async-inl.h:677:12: note: Calling 'PtmfHelper::apply'
137[17:32:33.147]   677 |     return PtmfHelper::from<ReturnType, Decay<Func>, ParamTypes...>(
138[17:32:33.147]       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
139[17:32:33.147]   678 |         &Decay<Func>::operator()).apply(&func);
140[17:32:33.147]       |         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
141[17:32:33.147] /usr/include/kj/async-inl.h:606:9: note: Assuming the condition is true
142[17:32:33.147]   606 |     if (voff & 1) {
143[17:32:33.147]       |         ^~~~~~~~
144[17:32:33.147] /usr/include/kj/async-inl.h:606:5: note: Taking true branch
145[17:32:33.147]   606 |     if (voff & 1) {
146[17:32:33.147]       |     ^
147[17:32:33.147] /usr/include/kj/async-inl.h:609:37: note: The left operand of '+' is a garbage value
148[17:32:33.147]   609 |       return *(void**)(*(char**)obj + voff);
149[17:32:33.147]       |                        ~~~~~~~~~~~~ ^
150[17:32:33.147] 1 warning generated.

fanquake commented at 10:51 am on August 26, 2025: member

cc @Sjors @ryanofsky
ryanofsky commented at 1:48 pm on August 26, 2025: contributor

This warning “warning: The left operand of ‘+’ is a garbage value [clang-analyzer-core.UndefinedBinaryOperatorResult]” is a clang-analzyer false positive that we’d seen before and is fixed in https://github.com/capnproto/capnproto/pull/2334/commits/4c011373fe209a8b045b5aca0de043de271ad931 (https://github.com/capnproto/capnproto/pull/2334) upstream.

As described in that commit message it’s possible to turn off that specific warning globally but not really to suppress it locally with compiler options. So if the output is a problem we could turn it off globally, or apply the patch there which suppresses it locally with a NOLINT annotation
maflcko added the label Tests on Aug 26, 2025

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fanquake ryanofsky

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