Carlos O'Ryan

This is also a problem on Windows.

I sent a CL to fix Protobuf, but it will take a while to seep into the open source version.

FWIW, I think this is the first time we see b/239480982 affecting a CI build. I am basing that just on the "No such file or directory" message, and speculating...

I think this was actually fixed by #9667

GCB: https://console.cloud.google.com/cloud-build/builds;region=us-east1/a0eb04bb-3094-482b-8806-e23aeffca4eb;tab=detail?project=cloud-cpp-testing-resources Raw: https://storage.googleapis.com/cloud-cpp-community-publiclogs/logs/google-cloud-cpp/main/b92933ba81c2e497e7daf239ce9872080da2828e/fedora-34-coverage/log-a0eb04bb-3094-482b-8806-e23aeffca4eb.txt

GCB: https://console.cloud.google.com/cloud-build/builds;region=us-east1/47b3f67b-30da-4b5f-9615-50b136377c30;tab=detail?project=cloud-cpp-testing-resources Raw: https://storage.googleapis.com/cloud-cpp-community-publiclogs/logs/google-cloud-cpp/main/bf0b040aed516355156be139dcf3417ea0e848a0/fedora-34-coverage/log-47b3f67b-30da-4b5f-9615-50b136377c30.txt

Looks like the Envoy folks solved or at least avoid this problem by using llvm-cov instead of GCC: https://github.com/bazelbuild/bazel/issues/7279

GCB: https://console.cloud.google.com/cloud-build/builds;region=us-east1/354900a0-bd00-404b-b899-0c1cb83fd8de;tab=detail?project=cloud-cpp-testing-resources Raw: https://storage.googleapis.com/cloud-cpp-community-publiclogs/logs/google-cloud-cpp/main/a5a5458e477dd24c0e07586d0f502de079b9a60f/fedora-34-coverage/log-354900a0-bd00-404b-b899-0c1cb83fd8de.txt

* GCB: https://console.cloud.google.com/cloud-build/builds;region=us-east1/4e34ab12-1aef-4c82-bf13-100e85454cf7;tab=detail?project=cloud-cpp-testing-resources * Raw: https://storage.googleapis.com/cloud-cpp-community-publiclogs/logs/google-cloud-cpp/main/6c322a17954faaf2cdbec6378400c89a25b343b6/fedora-34-coverage/log-4e34ab12-1aef-4c82-bf13-100e85454cf7.txt

* GCB: https://console.cloud.google.com/cloud-build/builds;region=us-east1/41c5b38d-2c2a-46fb-835b-3a44c4cda12c;tab=detail?project=cloud-cpp-testing-resources * Raw: https://storage.googleapis.com/cloud-cpp-community-publiclogs/logs/google-cloud-cpp/8947/fc31c28a127b6553e6b0b3aa5e563b0c820a5906/fedora-35-coverage/log-41c5b38d-2c2a-46fb-835b-3a44c4cda12c.txt