This has build been consistently failing at the same point. And for for along time, previously in another team.
It seems more likely to happen late in UK afternoon which I’m guessing is likely to be peak US time. The rebuild without any cache always works. I suspect a timeout as the repo has many submodules and a LOT of code.
4:11:56 PM: Build ready to start 4:11:59 PM: build-image version: 53b83b6bede2920f236b25b6f5a95334320dc849 4:11:59 PM: build-image tag: v3.6.0 4:11:59 PM: buildbot version: a706ec7a557bcc28584843816a376a10c08955ca 4:11:59 PM: Fetching cached dependencies 4:11:59 PM: Starting to download cache of 707.9MB 4:12:06 PM: Finished downloading cache in 7.296737137s 4:12:06 PM: Starting to extract cache 4:12:20 PM: Finished extracting cache in 14.263183363s 4:12:21 PM: Finished fetching cache in 22.419969071s 4:12:21 PM: Starting to prepare the repo for build 4:12:22 PM: Preparing Git Reference refs/heads/master 4:12:31 PM: Error fetching branch: https://github.com/w3c/wai-website refs/heads/master 4:12:31 PM: Failing build: Failed to prepare repo 4:12:31 PM: Failed during stage 'preparing repo': exit status 1 4:12:31 PM: Finished processing build request in 32.058087231s