[llvm] [YAML][NFC] precommit wrong test case (PR #131782)

Mon Mar 24 23:49:38 PDT 2025

llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `llvm-clang-x86_64-gcc-ubuntu` running on `sie-linux-worker3` while building `llvm` at step 5 "build-unified-tree".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/174/builds/15105

<details>
<summary>Here is the relevant piece of the build log for the reference</summary>

```
Step 5 (build-unified-tree) failure: build (failure)
...
3.208 [185/34/22] Linking CXX executable bin/llvm-cat
3.208 [184/34/23] Linking CXX executable bin/llvm-cov
3.209 [183/34/24] Linking CXX executable bin/llvm-rc
3.209 [182/34/25] Linking CXX executable bin/apinotes-test
3.213 [181/34/26] Linking CXX executable bin/llvm-profdata
3.223 [180/34/27] Linking CXX executable bin/llvm-cgdata
3.244 [179/34/28] Linking CXX executable bin/clang-apply-replacements
3.268 [178/34/29] Linking CXX executable bin/llvm-pdbutil
3.285 [177/34/30] Linking CXX executable bin/llvm-link
3.351 [176/34/31] Building CXX object unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o
FAILED: unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o 
/opt/ccache/bin/g++ -DGTEST_HAS_RTTI=0 -DLLVM_BUILD_STATIC -D_DEBUG -D_GLIBCXX_ASSERTIONS -D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/unittests/Support -I/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/unittests/Support -I/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/build/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/third-party/unittest/googletest/include -I/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/third-party/unittest/googlemock/include -fPIC -fno-semantic-interposition -fvisibility-inlines-hidden -Werror=date-time -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wno-missing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-uninitialized -Wno-nonnull -Wno-class-memaccess -Wno-redundant-move -Wno-pessimizing-move -Wno-noexcept-type -Wdelete-non-virtual-dtor -Wsuggest-override -Wno-comment -Wno-misleading-indentation -fdiagnostics-color -ffunction-sections -fdata-sections -O3 -DNDEBUG  -Wno-dangling-else -Wno-variadic-macros -fno-exceptions -funwind-tables -fno-rtti -UNDEBUG -Wno-suggest-override -std=c++17 -MD -MT unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o -MF unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o.d -o unittests/Support/CMakeFiles/SupportTests.dir/YAMLIOTest.cpp.o -c /home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/unittests/Support/YAMLIOTest.cpp
/home/buildbot/buildbot-root/llvm-clang-x86_64-gcc-ubuntu/llvm-project/llvm/unittests/Support/YAMLIOTest.cpp:1280:20: error: explicit specialization of ‘template<class T> struct llvm::yaml::MappingTraits’ outside its namespace must use a nested-name-specifier [-fpermissive]
 1280 | template <> struct MappingTraits<V> {
      |                    ^~~~~~~~~~~~~~~~
3.472 [176/33/32] Linking CXX executable bin/clang-format
3.602 [176/32/33] Linking CXX executable bin/clang-offload-bundler
3.618 [176/31/34] Linking CXX executable bin/llvm-mca
3.618 [176/30/35] Linking CXX executable bin/llvm-ml
3.632 [176/29/36] Linking CXX executable bin/llvm-mc
3.699 [176/28/37] Building CXX object tools/lld/Common/CMakeFiles/lldCommon.dir/Version.cpp.o
3.735 [176/27/38] Linking CXX executable bin/llvm-dwarfdump
3.758 [176/26/39] Linking CXX executable bin/llvm-ar
3.806 [176/25/40] Linking CXX executable bin/llvm-nm
3.834 [176/24/41] Linking CXX executable bin/llvm-objdump
3.883 [176/23/42] Linking CXX executable bin/llvm-cfi-verify
3.905 [176/22/43] Linking CXX executable bin/llvm-debuginfo-analyzer
3.914 [176/21/44] Linking CXX executable bin/llvm-extract
4.225 [176/20/45] Linking CXX executable bin/llvm-profgen
4.324 [176/19/46] Linking CXX executable bin/llvm-jitlink
4.489 [176/18/47] Linking CXX executable bin/diagtool
4.511 [176/17/48] Linking CXX shared module lib/CheckerOptionHandlingAnalyzerPlugin.so
4.533 [176/16/49] Linking CXX shared module lib/CheckerDependencyHandlingAnalyzerPlugin.so
4.685 [176/15/50] Linking CXX shared module lib/SampleAnalyzerPlugin.so
5.020 [176/14/51] Linking CXX executable bin/pp-trace
5.060 [176/13/52] Linking CXX executable bin/clang-doc
5.064 [176/12/53] Linking CXX executable bin/clang-diff
5.153 [176/11/54] Linking CXX executable bin/clang-change-namespace
5.163 [176/10/55] Linking CXX executable bin/clang-installapi
5.176 [176/9/56] Linking CXX executable bin/find-all-symbols
5.213 [176/8/57] Linking CXX executable bin/modularize
5.346 [176/7/58] Linking CXX executable bin/clang-include-fixer
5.391 [176/6/59] Linking CXX executable bin/clang-reorder-fields
5.462 [176/5/60] Linking CXX executable bin/clang-move
5.478 [176/4/61] Linking CXX executable bin/clang-refactor
7.962 [176/3/62] Linking CXX executable bin/clang-tidy
13.335 [176/2/63] Building CXX object lib/CodeGen/AsmPrinter/CMakeFiles/LLVMAsmPrinter.dir/AsmPrinter.cpp.o
14.602 [176/1/64] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/LTO.cpp.o
ninja: build stopped: subcommand failed.

```

</details>

https://github.com/llvm/llvm-project/pull/131782