Hi,
I've been looking at the problems of packaging trafficserver; those are mostly out of scope here, but it does seem that there is a problem with builds hanging that used to work.
The last successful build was pipeline 35775, 5th January 2024, building commit 6f4ce348 (the build step taking 10m37s). One can't just re-run that, though, as the CI steps needed have subsequently changed. But the same code now reliably fails to build - what you observe is that the build gets so far and then just stops until the timeout comes along.
For examples of failures, see job 329574, job 329639 (observed to have hung after 32m), job 329657 (observed to have hung after 9m45s), all of which use memory-optimized runners, and job 329641 which used a regular one and I noticed had hung after 1m33s.
Obviously this could be bugs in the build system, but the fact that the code built back in January and now does not (and the fact that the build hangs rather than something failing) makes me suspect the infrastructure instead. I'd expect resource exhaustion to result in a more obvious failure than a hang, but I really don't know...