Just to jump in here, one thing that can happen when you do repeated deploys is that the disk on the remote builder can get full. Only I see the same builder name appear in your logs. It’s possible it’s as simple as that. That would explain an “out of space” error.
You could try deleting it. Run fly apps destroy fly-builder-hidden-pond-1135
.
Then when you next deploy, Fly will see you don’t have a remote builder and will make a new one. With a new, empty disk:
If it’s not that, I’m out of ideas and it’s back over to @rubys