Ok. Fixed this by two things: - using branch r0.10, as suggested by https://news.ycombinator.com/item?id=12464835 https://news.ycombinator.com/item?id=12464835

Ok. Fixed this by two things: - using branch r0.10, as suggested by https://news.ycombinator.com/item?id=12464835 https://news.ycombinator.com/item?id=12464835 - making sure to install the new r0.10 wheel, which has a different name than the r0 wheel built by master :-D