James E. King, III wrote:
I'm not convinced it is due to mac jobs. I have no mac jobs in three repositories because of the delays there; my linux-only PRs are still experiencing a 12 hour delay running.
As I said, stuck Mac jobs reduce the Linux parallelism from 5 to 3.
Travis is at least smart enough not to block the 5 available build runners if there are no mac resources to run anything... it'll keep running 5 concurrent.
No, it doesn't, it runs 3. Look at it. Your delay at this specific moment is indeed due to boostorg/system feature branch work, but that's because you're lucky. Usually, you'll be stuck waiting for something like https://travis-ci.org/boostorg/math/builds/330892193 and no amount of rallying against feature branches will save you.