Here is what I am getting on failed builds, Looks like an issue on their end:
BUILD SUCCESSFUL in 1m 25s
47 actionable tasks: 47 executed
Built the following apk(s):
/usr/src/app/platforms/android/app/build/outputs/apk/debug/app-debug.apk
$ cordova build android success
Running after script…
$ run "clean-up"
Running Stage clean-up for Job: 5344479 ERROR:
Job failed: exit status 1