hiya! Looks like you are close to getting a success here - but it seems from the build log that your site is taking too long to build (the default max runtime is 15 minutes)
Two things i am immediately thinking of - is this a large site? Or is it possible that there is a lingering background process that never terminates?
We can make some changes to give you a longer runtime, but if the problem really is that you have some lagging process, it would be better to optimize that first.