/rebuild

Sorry @pks-t, an error occurred while trying to requeue the build.

The code tended to get stuck randomly depending on how fast bytes came in through the network layer. The issue is taht git_zstream_get_output reads until all output bytes have been filled or the stream is at end. If the amount of input bytes cannot fill the output buffer and will not cause the current object to be finished, then we get stuck in an endless loop around git_zstream_get_output_chunk.

I tried fixing git_zstream_get_output, but it's near impossible to get right as other callers then fail. By converting to git_zstream_get_output_chunk, though, we are able to get the streaming code correct, where it will now return GIT_EBUFS as expected in case we didn't get enough input bytes. That fixes the endless loop.

Thus: never use git_zstream_get_output in a streaming scenario, but only ever git_zstream_get_output_chunk.

Yup, green now. @ethomson, want to have another look? As said, the only change was to replace git_zstream_get_output with git_zstream_get_output_chunk.

Thanks for the ping @pks-t - I restarted the build and then forgot about it.