llvm-ci wrote:

LLVM Buildbot has detected a new failure on builder `sanitizer-aarch64-linux` 
running on `sanitizer-buildbot8` while building `llvm` at step 2 "annotate".

Full details are available at: 
https://lab.llvm.org/buildbot/#/builders/51/builds/16552

<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-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/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: 5734 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80
FAIL: ThreadSanitizer-aarch64 :: cxa_guard_acquire.cpp (4711 of 5734)
******************** TEST 'ThreadSanitizer-aarch64 :: cxa_guard_acquire.cpp' 
FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang  
--driver-mode=g++ -fsanitize=thread -Wall   -Wthread-safety 
-Wthread-safety-reference -Wthread-safety-beta   -nobuiltininc 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include 
-idirafter 
/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include 
-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build 
-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux  
-gline-tables-only 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-std=c++11 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-nostdinc++ 
-I/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/tsan/libcxx_tsan_aarch64/include/c++/v1
 -O1 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
 -o 
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
 &&  
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
 2>&1 | FileCheck 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
 # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux/build/build_default/bin/clang 
--driver-mode=g++ -fsanitize=thread -Wall -Wthread-safety 
-Wthread-safety-reference -Wthread-safety-beta -nobuiltininc 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include 
-idirafter 
/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include 
-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build 
-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux 
-gline-tables-only 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-std=c++11 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-nostdinc++ 
-I/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/tsan/libcxx_tsan_aarch64/include/c++/v1
 -O1 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
 -o 
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
+ 
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
+ FileCheck 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp:71:17:
 error: CHECK-NEXT: is not on the line after the previous match
 // CHECK-NEXT: Enter constructor
                ^
<stdin>:3:1: note: 'next' match was here
Enter constructor
^
<stdin>:1:11: note: previous match ended here
Enter main
          ^
<stdin>:2:1: note: non-matching line after previous match is here
Enter potentially blocking region
^

Input file: <stdin>
Check file: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
         1: Enter main 
         2: Enter potentially blocking region 
         3: Enter constructor 
next:71     !~~~~~~~~~~~~~~~~  error: match on wrong line
         4: Exit constructor 
         5: Exit potentially blocking region 
         6: Enter constructor 2 
         7: Exit main 
>>>>>>
Step 16 (test standalone compiler-rt) failure: test standalone compiler-rt 
(failure)
...
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/lit.common.cfg.py:60:
 warning: Path reported by clang does not exist: 
"/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/aarch64-unknown-linux-gnu".
 This path was found by running 
['/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang', 
'--target=aarch64-unknown-linux-gnu', '-Wthread-safety', 
'-Wthread-safety-reference', '-Wthread-safety-beta', '-nobuiltininc', 
'-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include', 
'-idirafter', 
'/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include', 
'-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build', 
'-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux', 
'-print-runtime-dir'].
llvm-lit: 
/home/b/sanitizer-aarch64-linux/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: 5734 tests, 72 workers --
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80
FAIL: ThreadSanitizer-aarch64 :: cxa_guard_acquire.cpp (4711 of 5734)
******************** TEST 'ThreadSanitizer-aarch64 :: cxa_guard_acquire.cpp' 
FAILED ********************
Exit Code: 1

Command Output (stderr):
--
/home/b/sanitizer-aarch64-linux/build/build_default/bin/clang  
--driver-mode=g++ -fsanitize=thread -Wall   -Wthread-safety 
-Wthread-safety-reference -Wthread-safety-beta   -nobuiltininc 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include 
-idirafter 
/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include 
-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build 
-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux  
-gline-tables-only 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-std=c++11 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-nostdinc++ 
-I/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/tsan/libcxx_tsan_aarch64/include/c++/v1
 -O1 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
 -o 
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
 &&  
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
 2>&1 | FileCheck 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
 # RUN: at line 1
+ /home/b/sanitizer-aarch64-linux/build/build_default/bin/clang 
--driver-mode=g++ -fsanitize=thread -Wall -Wthread-safety 
-Wthread-safety-reference -Wthread-safety-beta -nobuiltininc 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/include 
-idirafter 
/home/b/sanitizer-aarch64-linux/build/build_default/lib/clang/21/include 
-resource-dir=/home/b/sanitizer-aarch64-linux/build/compiler_rt_build 
-Wl,-rpath,/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/linux 
-gline-tables-only 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-std=c++11 
-I/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/../ 
-nostdinc++ 
-I/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/lib/tsan/libcxx_tsan_aarch64/include/c++/v1
 -O1 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
 -o 
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
+ 
/home/b/sanitizer-aarch64-linux/build/compiler_rt_build/test/tsan/AARCH64Config/Output/cxa_guard_acquire.cpp.tmp
+ FileCheck 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp:71:17:
 error: CHECK-NEXT: is not on the line after the previous match
 // CHECK-NEXT: Enter constructor
                ^
<stdin>:3:1: note: 'next' match was here
Enter constructor
^
<stdin>:1:11: note: previous match ended here
Enter main
          ^
<stdin>:2:1: note: non-matching line after previous match is here
Enter potentially blocking region
^

Input file: <stdin>
Check file: 
/home/b/sanitizer-aarch64-linux/build/llvm-project/compiler-rt/test/tsan/cxa_guard_acquire.cpp

-dump-input=help explains the following input dump.

Input was:
<<<<<<
         1: Enter main 
         2: Enter potentially blocking region 
         3: Enter constructor 
next:71     !~~~~~~~~~~~~~~~~  error: match on wrong line
         4: Exit constructor 
         5: Exit potentially blocking region 
         6: Enter constructor 2 
         7: Exit main 
>>>>>>

```

</details>

https://github.com/llvm/llvm-project/pull/140183
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