$ git push origin master
To [email protected]:osdiy/android.git
! [rejected] master -> master (non-fast-forward)
error: failed to push some refs to '[email protected]:osdiy/android.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

你本地的项目和github里的不一样。要先git pull