Propagate betty failures to Cheeps/acloud

Bug: b/130891862
Test: ../../out/host/linux-x86/bin/acloud-dev create --avd-type cheeps
--branch git_master-arc-dev --build-id 5484212 --config-file
~/dev/acloud.config
Change-Id: I948b1e7856ffb29466c5a6480709f557287b0319