$ git status
On branch master
Your branch is ahead of 'origin/master' by 1 commit.
(use "git push" to publish your local commits)
nothing to commit, working tree clean
$ git push origin master
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (3/3), done.
Writing objects: 100% (3/3), 301 bytes | 0 bytes/s, done.
Total 3 (delta 2), reused 0 (delta 0)
remote: GitLab: You are not allowed to push code to protected branches on this project.
! [remote rejected] master -> master (pre-receive hook declined)
error: failed to push some refs to 'email@example.com:sources/xxxx.git'