Thanks for trying out the archive at
There has been a discussion at gnome-infrastructure on this issue, and
there are now easier instructions,
What you need to do is simply run the command (assuming you are in brasero):
git config remote.origin.url ssh://vasudeven git gnome org/git/brasero
Then, with
git reset --hard
you will get the working copy for 'master', and you can start working.
In order to update your local tree, you run
git pull --rebase
and you get your local brasero tree updated to what is available at
git.gnome.org, in about a few seconds!
The error message you get above means that the command tried to
connect to git.gnome.org while you either did not have an internet
connection, or momentarily the name resolution failed.