llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder 
`sanitizer-x86_64-linux-fast` running on `sanitizer-buildbot4` while building 
`clang,libcxxabi` at step 2 "annotate".

Full details are available at: 
https://lab.llvm.org/buildbot/#/builders/169/builds/3778

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

```
Step 2 (annotate) failure: 'python 
../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'
 (failure)
...
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using lld-link: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld64.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using wasm-ld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using lld-link: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld64.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using wasm-ld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72:
 note: The test suite configuration requested an individual test timeout of 0 
seconds but a timeout of 900 seconds was requested on the command line. Forcing 
timeout to be 900 seconds.
-- Testing: 85930 of 85931 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 
FAIL: Clang :: CodeGenCXX/mangle-concept.cpp (24954 of 85930)
******************** TEST 'Clang :: CodeGenCXX/mangle-concept.cpp' FAILED 
********************
Exit Code: 2

Command Output (stderr):
--
RUN: at line 1: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang -cc1 
-internal-isystem 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include
 -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu 
-o - 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 -fclang-abi-compat=latest | 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang 
-cc1 -internal-isystem 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include
 -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu 
-o - 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 -fclang-abi-compat=latest
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
error: 'expected-error' diagnostics seen but not expected: 
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 39: redefinition of 'h'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 38: default template argument not permitted on a friend template
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 45: redefinition of 'j'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 44: default template argument not permitted on a friend template
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 51: redefinition of 'l'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 50: default template argument not permitted on a friend template
error: 'expected-note' diagnostics seen but not expected: 
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 55: in instantiation of template class 'test2::A<bool>' requested here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 39: previous definition is here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 45: previous definition is here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 51: previous definition is here
10 errors generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
522.43s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
343.03s: Clang :: Driver/fsanitize.c
310.48s: Clang :: Preprocessor/riscv-target-features.c
262.92s: Clang :: OpenMP/target_update_codegen.cpp
261.94s: Clang :: Driver/arm-cortex-cpus-2.c
258.75s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
244.68s: Clang :: Driver/arm-cortex-cpus-1.c
227.70s: Clang :: Preprocessor/arm-target-features.c
Step 9 (stage2/asan_ubsan check) failure: stage2/asan_ubsan check (failure)
...
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using lld-link: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld64.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using wasm-ld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using lld-link: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/lld-link
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld64.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/ld64.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using wasm-ld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/wasm-ld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72:
 note: The test suite configuration requested an individual test timeout of 0 
seconds but a timeout of 900 seconds was requested on the command line. Forcing 
timeout to be 900 seconds.
-- Testing: 85930 of 85931 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 
FAIL: Clang :: CodeGenCXX/mangle-concept.cpp (24954 of 85930)
******************** TEST 'Clang :: CodeGenCXX/mangle-concept.cpp' FAILED 
********************
Exit Code: 2

Command Output (stderr):
--
RUN: at line 1: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang -cc1 
-internal-isystem 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include
 -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu 
-o - 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 -fclang-abi-compat=latest | 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/clang 
-cc1 -internal-isystem 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/lib/clang/20/include
 -nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu 
-o - 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 -fclang-abi-compat=latest
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
error: 'expected-error' diagnostics seen but not expected: 
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 39: redefinition of 'h'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 38: default template argument not permitted on a friend template
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 45: redefinition of 'j'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 44: default template argument not permitted on a friend template
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 51: redefinition of 'l'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 50: default template argument not permitted on a friend template
error: 'expected-note' diagnostics seen but not expected: 
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 55: in instantiation of template class 'test2::A<bool>' requested here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 39: previous definition is here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 45: previous definition is here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 51: previous definition is here
10 errors generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.. 
Slowest Tests:
--------------------------------------------------------------------------
522.43s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
343.03s: Clang :: Driver/fsanitize.c
310.48s: Clang :: Preprocessor/riscv-target-features.c
262.92s: Clang :: OpenMP/target_update_codegen.cpp
261.94s: Clang :: Driver/arm-cortex-cpus-2.c
258.75s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
244.68s: Clang :: Driver/arm-cortex-cpus-1.c
227.70s: Clang :: Preprocessor/arm-target-features.c
Step 12 (stage2/msan check) failure: stage2/msan check (failure)
...
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using lld-link: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/lld-link
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld64.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/ld64.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using wasm-ld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/wasm-ld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/ld.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using lld-link: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/lld-link
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using ld64.lld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/ld64.lld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/llvm/config.py:506:
 note: using wasm-ld: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/wasm-ld
llvm-lit: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/llvm/utils/lit/lit/main.py:72:
 note: The test suite configuration requested an individual test timeout of 0 
seconds but a timeout of 900 seconds was requested on the command line. Forcing 
timeout to be 900 seconds.
-- Testing: 85929 tests, 88 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.
FAIL: Clang :: CodeGenCXX/mangle-concept.cpp (16024 of 85929)
******************** TEST 'Clang :: CodeGenCXX/mangle-concept.cpp' FAILED 
********************
Exit Code: 2

Command Output (stderr):
--
RUN: at line 1: 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/clang -cc1 
-internal-isystem 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/lib/clang/20/include 
-nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu 
-o - 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 -fclang-abi-compat=latest | 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/clang -cc1 
-internal-isystem 
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/lib/clang/20/include 
-nostdsysteminc -verify -std=c++20 -emit-llvm -triple x86_64-unknown-linux-gnu 
-o - 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 -fclang-abi-compat=latest
+ /home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
error: 'expected-error' diagnostics seen but not expected: 
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 39: redefinition of 'h'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 38: default template argument not permitted on a friend template
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 45: redefinition of 'j'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 44: default template argument not permitted on a friend template
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 51: redefinition of 'l'
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 50: default template argument not permitted on a friend template
error: 'expected-note' diagnostics seen but not expected: 
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 55: in instantiation of template class 'test2::A<bool>' requested here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 39: previous definition is here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 45: previous definition is here
  File 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp
 Line 51: previous definition is here
10 errors generated.
FileCheck error: '<stdin>' is empty.
FileCheck command line:  
/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_msan/bin/FileCheck 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/test/CodeGenCXX/mangle-concept.cpp

--

********************
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Slowest Tests:
--------------------------------------------------------------------------
170.14s: LLVM :: CodeGen/AMDGPU/sched-group-barrier-pipeline-solver.mir
120.50s: Clang :: CodeGen/aarch64-sve-intrinsics/acle_sve_reinterpret.c
92.68s: Clang :: CodeGen/aarch64-sve-intrinsics/acle_sve_reinterpret-bfloat.c
82.31s: Clang :: OpenMP/target_update_codegen.cpp
79.39s: LLVM :: CodeGen/X86/vector-interleaved-load-i8-stride-8.ll
78.11s: Clang :: OpenMP/target_defaultmap_codegen_01.cpp
74.80s: Clang :: Headers/arm-neon-header.c
73.66s: Clang :: CodeGen/X86/rot-intrinsics.c

```

</details>

https://github.com/llvm/llvm-project/pull/110247
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