I'd love to be really strict on my reviews of the code but I don't have that luxury because the majority of samples fail one of the following tests:
1. Don't compile
2. Crash under trivial input
3. Have trivially detectable race conditions
I spend alot of time recruiting for remote golang developmers who will be working at a fairly massive scale (not Google but a fortune 50/top 50 Alexa rank). I can't say that I've ever had 20 candidates in front of me who could write race free code with the bare minimum of tests.