Installed packages as noted in README.md, build went smoothly. make check reports no failed tests. it appears that no fonts are being found, still looking into it.

[rfieldin@rfieldin-ubuntu build (master)]$ uname -a
Linux rfieldin-ubuntu 3.2.0-37-generic #58-Ubuntu SMP Thu Jan 24 15:28:10 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
[rfieldin@rfieldin-ubuntu build (master)]$ ./servo ../src/test/html/hello.html
rust: task failed at 'assertion failed: fonts.len() > 0', /home/rfieldin/servo/src/components/gfx/font_context.rs:185