Possible issue with codecov which silently ignores an error

[jmfrank63]

[2024-01-01T05:33:30.076Z] ['error'] There was an error running the uploader: Error uploading to [https://codecov.io:](https://codecov.io/) Error: There was an error fetching the storage URL during POST: 404 - {'detail': ErrorDetail(string='Unable to locate build via Github Actions API. Please upload with the Codecov repository upload token to resolve issue.', code='not_found')}

This error is only shown in the codecov report, but leads to the test actually succeeding.

This might be intended or not critical, I cannot judge this. Please have a look at PR 146.
I did not change any tests, but added one to cover three lines in in_memory.rs. The test seems to be covering the lines if I check for coverage locally, but I cannot verify it online.

If you think the PR is fine and the error is marginal, I'd appreciate merging it.

[jmfrank63]

It looks like the issue was transient. Today it worked and exposed my first test I added did not succeed in covering a failure of compare_exchange_weak. But the second did.
However, this failure of coverage only appeared after the rebase and the tests are not easy to write. I cannot keep this up indefinitely. These tests are by no means easy to write. The coverage is now back to 100% and overall has actually increased. I think the branch should be merged now.
I leave the issue open, until you decide if this can be merged or should be rejected. With your decision taken, feel free to close the issue.