Upload succeeds but "Unknown error" on CodeCov page and no report being generated

[larseggert]

Describe the bug
Upload from CI succeeds, but CodeCov website shows "unknown error" and no coverage report is being generated.

Upload step from CI: https://github.com/mozilla/neqo/actions/runs/10920315985/job/30309902324?pr=2116#step:9:114
Report showing the "unknown error": https://app.codecov.io/github/mozilla/neqo/commit/1b5e4613e5c01968983f1e6995ed1566b24ec405

To Reproduce
Always seems to happen today.

Expected behavior
Expected the upload to be processed.

Screenshots

[drazisil-codecov]

Hi @larseggert . Very sorry about this. We had an incident https://status.codecov.com/incidents/45v73xh2j7f3
Reuploading the reports or pushing a fresh commit should resolve this. Please let me know if it does not.

[larseggert]

@drazisil-codecov this is still happening: https://app.codecov.io/github/mozilla/neqo/commit/3d57037e5a0aa85619fe464c4d79ab59b741689e

[larseggert]

Is this possible due to the upload action finding two files to upload, although I specifically tell it to upload only lcov.info?

info - 2024-09-18 14:53:43,411 -- Found 2 coverage files to report
info - 2024-09-18 14:53:43,411 -- > /home/runner/work/neqo/neqo/lcov.info
info - 2024-09-18 14:53:43,411 -- > /home/runner/work/neqo/neqo/nss/tests/libpkix/vfychain_test.lst

That second file does definitely not have coverage data.

Edit: I just reloaded https://app.codecov.io/github/mozilla/neqo/commit/3d57037e5a0aa85619fe464c4d79ab59b741689e and the errors have disappeared...

[drazisil-codecov]

Hi @larseggert

Since the error went away, you probably hit codecov/engineering-team#2119

Good to know that the report processed for you.