I actually have just reproduced the later one with Ubuntu Precise and Mixxx 2.0.0 (build 1.12 r5772)
Unfortunately I cannot reproduce it again under Gdb.
The first one might be related to:
Debug [AnalyserQueue 2]: Analyzing "Stress Free (Original Mix)" "/home/jneilmbs/Desktop/Collection/Stress Free (Original Mix) - Liaisons D.mp3"
These are log messages from two crashes, right?
I actually have just reproduced the later one with Ubuntu Precise and Mixxx 2.0.0 (build 1.12 r5772)
Unfortunately I cannot reproduce it again under Gdb.
The first one might be related to: jneilmbs/ Desktop/ Collection/ Stress Free (Original Mix) - Liaisons D.mp3"
Debug [AnalyserQueue 2]: Analyzing "Stress Free (Original Mix)" "/home/
Which version of taglib did you install?
apt-cache policy libtag1-vanilla
Does Mixxx crash again if you play that track?