It's unclear. The assistant is trying to sync a lot of stuff to S3 right now, as files are regularly added into the repository and the assistant migrates them all there. The repository is setup as a "source" repository to make sure it doesn't keep files and send them all to s3.
### What version of git-annex are you using? On what operating system?
standalone tarball `5.20150508-g883d57f` on Ubuntu Precise.
### Please provide any additional information below.
here are the two latest log files, but all previous logfiles available are similar...