fdeazeve added a comment.

In D132004#3728394 <https://reviews.llvm.org/D132004#3728394>, @fdeazeve wrote:

> This test is now failing even on the "basic" Clang (i.e. tip of trunk) test 
> matrix entry:
>
> https://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake-matrix/5043/execution/node/62/log/?consoleFull
>
> The log above is for the "Test DWARF4" portion of the job

Looking at the logs, the Dwarf 2 and Dwarf 4 jobs do not use ToT, but rather 
Clang 13. For example, for the Dwarf 2 job, we see this:

> "/Users/buildslave/jenkins/workspace/lldb-cmake-matrix/clang_1300_build/bin/clang"
>   -std=c++11 -gdwarf-2 -isysroot

Which is weird, given how we don't build Clang 13 until much later on the 
pipeline.
I think the bot has a polluted environment somehow across runs. For example, 
build 5042:

https://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake-matrix/5042/execution/node/52/log/?consoleFull

> ERROR:root:/Users/buildslave/jenkins/workspace/lldb-cmake-matrix/clang_1300_build/bin/clang
>  is not a valid compiler executable; aborting...

Sometimes the Clang13 builds get cleaned up (see how sometimes the Clang 13 
jobs take 30s to run, and sometimes 40min).
I'm guessing that this error shows up when the previous build got cleaned up.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D132004/new/

https://reviews.llvm.org/D132004

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