{"command":"git push origin HEAD","exitCode":1,"outputData":"","errorData":"To https://github.com/gi-ev/LNI-proceedings.git\n ! [rejected] HEAD -> keep-alive (fetch first)\nerror: failed to push some refs to 'https://github.com/gi-ev/LNI-proceedings.git'\nhint: Updates were rejected because the remote contains work that you do not\nhint: have locally. This is usually caused by another repository pushing to\nhint: the same ref. If you want to integrate the remote changes, use\nhint: 'git pull' before pushing again.\nhint: See the 'Note about fast-forwards' in 'git push --help' for details.\n"}