Follow-up from "Forward our requirement for C++17 onto Conan (needed for Boost)."
The following discussion from !400 (merged) should be addressed:
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@rulrich started a discussion: (+3 comments) Caching on CI is a complex mechanism. I would prefer to prevent using it since this induces costs:
- artifacts: are copied to gitlab.iap.kit.edu: very slow (!), needs lots of storage on server
- caching: needs local on-site dedicated caching servers: need to be setup and maintained, the jobs must be configured to be site-specific. Potential for high complexity and loss of stability.