ah. On the last line of your log we have the actual culprit (although not necessarily an explanation. your build isn’t completing within the allotted 15 minute time limit.
8:07:52 PM: Build exceeded maximum allowed runtime
More on that here:
I do feel sure that this is due to the lingering processes that aren’t terminating, so the code cannot get completed and pushed out to the edge nodes on our cdn.
I’ll let another support engineer with a deeper understanding of what the root cause may be weigh in here, but if i were you i would try and see if there is anything you can think of that might be causing the process to never complete.