Failed ingestion of a GitHub repository

The ingestion of the repository at https://github.com/sosy-lab/sv-benchmarks appears to fail systematically

https://archive.softwareheritage.org/browse/origin/directory/?origin_url=https://github.com/sosy-lab/sv-benchmarks&timestamp=2020-12-30T21:50:59Z

https://archive.softwareheritage.org/browse/origin/directory/?origin_url=https://github.com/sosy-lab/sv-benchmarks&timestamp=2021-01-04T17:05:11Z

It is important to understand what is going wrong here (unfortunately the admin console does not show anything useful, apart from "failed"), see image.

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Migrated from T2926 (view on Phabricator)