如何阻止git push悄悄地无法发布本地提交

我正在处理github回购协议的一个分支,成功推送了两次,但现在git推送悄悄地无法发布我的本地提交:

$ git version
git version 1.8.3.1

$ git remote -v
origin  git@github.com:martinwaite/vault.git (fetch)
origin  git@github.com:martinwaite/vault.git (push)

$ git status
# On branch batch_hmac
# Your branch is ahead of 'origin/batch_hmac' by 2 commits.
#   (use "git push" to publish your local commits)

$ git push
$ git push origin batch_hmac
$ git push origin HEAD
$ git status
# On branch batch_hmac
# Your branch is ahead of 'origin/batch_hmac' by 2 commits.
#   (use "git push" to publish your local commits)