It looks like CircleCI introduced a 1 hour timeout, or maybe it's due to us switching to a Large CI instance for the build-packages job.

In any case, this job would now timeout with an empty ccache cache, since it takes longer, including for new contributors e.g. #2010 .

I think the solution is to reduce the number of packages we build for each commit (which would be good for CI times in general), only keeping the most difficult to build & popular ones . Tests should work well in that case after #1981

Then for,

• tags
• if the commit message contains some pattern, for instance [build all]

build all packages.