C:\Users\me\blog>rake deploy
## Deploying branch to Github Pages
## Pulling any updates from Github Pages
cd _deploy
There is no tracking information for the current branch.
Please specify which branch you want to merge with.
See git-pull(1) for details

    git pull <remote> <branch>

If you wish to set tracking information for this branch you can do so with:

    git branch --set-upstream-to=origin/<branch> gh-pages

cd -
rm -rf _deploy/2013
rm -rf _deploy/archives
rm -rf _deploy/assets
rm -rf _deploy/atom.xml
rm -rf _deploy/favicon.png
rm -rf _deploy/images
rm -rf _deploy/index.html
rm -rf _deploy/javascripts
rm -rf _deploy/robots.txt
rm -rf _deploy/sitemap.xml
rm -rf _deploy/stylesheets

## Copying public/ to _deploy
cp -r public//. _deploy
cd _deploy

## Commiting: Site updated at 2013-10-11 02:57:13 UTC
# On branch gh-pages
nothing to commit, working directory clean

## Pushing generated _deploy website
To [email protected]:me/blog.git
 ! [rejected]        gh-pages -> gh-pages (non-fast-forward)
error: failed to push some refs to '[email protected]:me/blog.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.