dependency on clean-build/ftp.cs.ru.nl for the language report
Problem to solve
Building cloogle fails as downloading https://ftp.cs.ru.nl/Clean/builds/linux-x64/clean-language-report-linux-x64-latest.tgz fails. https://ftp.cs.ru.nl is down entirely. I don't know whether this is a temporary failure or it will stay down.
The actual issue is that we still depend on clean-build and the University's infrastructure, I think.
Proposal
I don't know enough about how the language report is processed to come up with a good proposal. Do we have to fork the language report and produce a CI artifact which can then be used by cloogle?