This is kind of a longshot, but noticed that the disk usage issue was accompanied by a stackoverflow issue during some sort of final signing step. This issue doesn't replicate on my fork because I didn't include the keys necessary for signing.
I also noticed that the disk usage issue specified that the error occured when trying to write to some sort of build log file.
Maybe there's a stack overflow issue that's causing a lot of logging that's eating up disk space? It's a stretch, but figure it doesn't hurt to bump gradle.jvmargs to possibly reduce chance of stack overflow?
