FYI: The recent ASF infrastructure move resulted in the loss of a machine. As a result, nightly builds are not going out, and the current nightly builds referenced from the website are all old.
If you are looking for a current nightly build, it's best to grab the Solr source and build it yourself (you need ant and subversion installed). Nightly builds will resume when the ASF infrastructure has fully recovered. -Yonik
