I thought that the lack of ffmpeg on Travis caused all the warnings and segmentation fault, but I was wrong: after successfully adding ffmpeg to Travis the warnings and segmentation fault were still there. Here’s the log of my most recent tests.
Following @Tamas_Papp’s advice on commenting out the plotting parts to see if it helps I found out that:
- The warning: error retrieving accessibility bus address is still there
- The segmentation fault is gone
So now I have no idea what causes those warnings, but the segmentation occurs in the plotting part. I’ll continue to comments out parts of the plotting in an attempt to pin point where the fault occurs.