Crate evaluation for 2017-05-16: log

It’s not clear to me whether some incomplete evaluation tasks have been claimed or not, so I added a section to the end of the template for listing tasks that people have volunteered for, and I added it to this op, and signed myself up for the “naming” and “interop” sections, which I will do shortly.

I also think that for simplicity’s sake we should stick to the log crate here, and worry about env_logger later. Otherwise we basically have to do the evaluation twice and create a whole second checklist. I’ll update the blitz thread to reflect this.