```
'git' 'clone' '-q' 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git' 'VisualEditor'
Total 73708 (delta 49816), reused 73204 (delta 49799)
cd VisualEditor
'git' 'checkout' '-q' '-b' 'wmf/1.25wmf12'
'git' 'commit' '-a' '-q' '-m' 'Creating new wmf/1.25wmf12 branch'
'git' 'push' 'origin' 'wmf/1.25wmf12'
To ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git
 ! [rejected]        wmf/1.25wmf12 -> wmf/1.25wmf12 (non-fast-forward)
error: failed to push some refs to 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.
sleeping for 5s
'git' 'push' 'origin' 'wmf/1.25wmf12'
To ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git
 ! [rejected]        wmf/1.25wmf12 -> wmf/1.25wmf12 (non-fast-forward)
error: failed to push some refs to 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.
sleeping for 5s
'git' 'push' 'origin' 'wmf/1.25wmf12'
To ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git
 ! [rejected]        wmf/1.25wmf12 -> wmf/1.25wmf12 (non-fast-forward)
error: failed to push some refs to 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.
sleeping for 5s
'git' 'push' 'origin' 'wmf/1.25wmf12'
To ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git
 ! [rejected]        wmf/1.25wmf12 -> wmf/1.25wmf12 (non-fast-forward)
error: failed to push some refs to 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.
sleeping for 5s
'git' 'push' 'origin' 'wmf/1.25wmf12'
To ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git
 ! [rejected]        wmf/1.25wmf12 -> wmf/1.25wmf12 (non-fast-forward)
error: failed to push some refs to 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.
sleeping for 5s
'git' 'push' 'origin' 'wmf/1.25wmf12'
To ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git
 ! [rejected]        wmf/1.25wmf12 -> wmf/1.25wmf12 (non-fast-forward)
error: failed to push some refs to 'ssh://gerrit.wikimedia.org:29418/mediawiki/extensions/VisualEditor.git'
To prevent you from losing history, non-fast-forward updates were rejected
Merge the remote changes (e.g. 'git pull') before pushing again.  See the
'Note about fast-forwards' section of 'git push --help' for details.
sleeping for 5s
git exit with status 1
```