static.rust-lang.org doc builder is failing

[huonw]

e.g. http://buildbot.rust-lang.org/builders/doc/builds/1489

sh -c rm -r tmp/doc/*

** RUNNING ON BUILDMASTER **
 in dir /home/rustbuild/bot/master
 argv: ['sh', '-c', 'rm -r tmp/doc/*']
 env: {'USERNAME': 'root', ...., 'HOME': '/home/rustbuild', '_': '/usr/local/bin/buildbot'}
rm: cannot remove `tmp/doc/*': No such file or directory
exit status 1

[alexcrichton]

Looks like it's working now, yay!