thurstond wrote:

> LLVM Buildbot has detected a new failure on builder 
> `sanitizer-x86_64-linux-fast` running on `sanitizer-buildbot4` while building 
> `clang` at step 2 "annotate".
> 
> Full details are available at: 
> https://lab.llvm.org/buildbot/#/builders/169/builds/21788
> 
> Here is the relevant piece of the build log for the reference

The bot is reporting that there's a memory leak introduced by this patch. Could 
you please take a look?

```
Direct leak of 136 byte(s) in 1 object(s) allocated from:
    #0 0x5ff790cff4ed in operator new(unsigned long) 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/compiler-rt/lib/asan/asan_new_delete.cpp:109:35
    #1 0x5ff790d10799 in createDiagnostics 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/diagtool/ShowEnabledWarnings.cpp:61:39
    #2 0x5ff790d10799 in (anonymous 
namespace)::ShowEnabledWarnings::run(unsigned int, char**, llvm::raw_ostream&) 
/home/b/sanitizer-x86_64-linux-fast/build/llvm-project/clang/tools/diagtool/ShowEnabledWarnings.cpp:98:49
    #3 0x7d038022a577  (/lib/x86_64-linux-gnu/libc.so.6+0x2a577) (BuildId: 
ae7440bbdce614e0e79280c3b2e45b1df44e639c)
    #4 0x7d038022a63a in __libc_start_main 
(/lib/x86_64-linux-gnu/libc.so.6+0x2a63a) (BuildId: 
ae7440bbdce614e0e79280c3b2e45b1df44e639c)
    #5 0x5ff790c22a04 in _start 
(/home/b/sanitizer-x86_64-linux-fast/build/llvm_build_asan_ubsan/bin/diagtool+0x12f3a04)
```


https://github.com/llvm/llvm-project/pull/190076
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