From: Justin M. Forbes on
gitlab.com
https://gitlab.com/cki-project/kernel-ark/-/merge_requests/2165#note_1203...
So it seems this will now fail if we have no warnings.
```
No new configuration values exposed from merging master into os-build
232Pushing branch os-build to git@gitlab.com:cki-project/kernel-ark.git
233Everything up-to-date
234Pushing config update branches
235grep: .push-warnings: No such file or directory
236rm: cannot remove '.push-warnings': No such file or directory
237make[1]: *** [Makefile:734: dist-merge-upstream] Error 1
238make[1]: Leaving directory '/builds/53/kernel-ark/redhat'
239make: *** [makefile:12: dist-merge-upstream-push] Error 2
241
Cleaning up project directory and file based variables
00:01
243ERROR: Job failed: exit code 1
```