The Drush Make utility downloads modules from during the build - but the site is currently down, which means Drush Make won't work (and so our continuous integration has ground to a halt).

There's a fix for general Drush usage here:

That fix changes the download url to use (which is working) instead of (which isn't).

Unfortunately Drush Make uses it's own download functions, so this doesn't help.. Here's my (very similar) hack to get the Drush Make downloads working..

Change line 367 in to the following:

'url'  => str_replace('ftp.', '', $release['file']),

(The file should be somewhere like /usr/share/drush/commands/drush_make)

And don't forget to remove the hack when comes back..