Bug#1029010: llvm-toolchain-15: autopkgtest regression

[Adrian Bunk]

Source: llvm-toolchain-15
Version: 1:15.0.7-1
Severity: serious

https://ci.debian.net/data/autopkgtest/testing/amd64/l/llvm-toolchain-15/30436521/log.gz

...
In file included from cout.cpp:1:
In file included from /usr/include/wasm32-wasi/c++/v1/iostream:41:
In file included from /usr/include/wasm32-wasi/c++/v1/ios:221:
In file included from /usr/include/wasm32-wasi/c++/v1/__locale:18:
In file included from /usr/include/wasm32-wasi/c++/v1/memory:841:
In file included from /usr/include/wasm32-wasi/c++/v1/__algorithm/copy.h:12:
In file included from /usr/include/wasm32-wasi/c++/v1/__algorithm/unwrap_iter.h:13:
In file included from /usr/include/wasm32-wasi/c++/v1/__iterator/iterator_traits.h:14:
In file included from /usr/include/wasm32-wasi/c++/v1/__iterator/incrementable_traits.h:15:
In file included from /usr/include/wasm32-wasi/c++/v1/concepts:133:
In file included from /usr/include/wasm32-wasi/c++/v1/__concepts/arithmetic.h:15:
In file included from /usr/include/wasm32-wasi/c++/v1/type_traits:421:
In file included from /usr/include/wasm32-wasi/c++/v1/__functional/invoke.h:17:
In file included from /usr/include/wasm32-wasi/c++/v1/__type_traits/decay.h:16:
/usr/include/wasm32-wasi/c++/v1/__type_traits/is_array.h:40:22: error: reference to unresolved using declaration
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS is_array<_Tp[_Np]>
                     ^
/usr/include/wasm32-wasi/c++/v1/cstddef:52:1: note: using declaration annotated with 'using_if_exists' here
using ::size_t _LIBCPP_USING_IF_EXISTS;
^
In file included from cout.cpp:1:
In file included from /usr/include/wasm32-wasi/c++/v1/iostream:41:
In file included from /usr/include/wasm32-wasi/c++/v1/ios:221:
In file included from /usr/include/wasm32-wasi/c++/v1/__locale:18:
In file included from /usr/include/wasm32-wasi/c++/v1/memory:841:
In file included from /usr/include/wasm32-wasi/c++/v1/__algorithm/copy.h:12:
In file included from /usr/include/wasm32-wasi/c++/v1/__algorithm/unwrap_iter.h:13:
In file included from /usr/include/wasm32-wasi/c++/v1/__iterator/iterator_traits.h:14:
In file included from /usr/include/wasm32-wasi/c++/v1/__iterator/incrementable_traits.h:15:
In file included from /usr/include/wasm32-wasi/c++/v1/concepts:133:
In file included from /usr/include/wasm32-wasi/c++/v1/__concepts/arithmetic.h:15:
In file included from /usr/include/wasm32-wasi/c++/v1/type_traits:421:
In file included from /usr/include/wasm32-wasi/c++/v1/__functional/invoke.h:17:
In file included from /usr/include/wasm32-wasi/c++/v1/__type_traits/decay.h:20:
/usr/include/wasm32-wasi/c++/v1/__type_traits/remove_extent.h:25:22: error: reference to unresolved using declaration
template <class _Tp, size_t _Np> struct _LIBCPP_TEMPLATE_VIS remove_extent<_Tp[_Np]>
                     ^
/usr/include/wasm32-wasi/c++/v1/cstddef:52:1: note: using declaration annotated with 'using_if_exists' here
using ::size_t _LIBCPP_USING_IF_EXISTS;
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
autopkgtest [04:43:27]: test command1: -----------------------]
autopkgtest [04:43:27]: test command1:  - - - - - - - - - - results - - - - - - - - - -
command1             FAIL non-zero exit status 1
...
autopkgtest [04:47:28]: @@@@@@@@@@@@@@@@@@@@ summary
command1             FAIL non-zero exit status 1
integration-test-suite-test PASS
cmake-test           PASS
command2             PASS
command3             PASS