i/o error: Get "https://proxy.golang.org/github.com/!sting!nevermore/go/@v/v0.0.0-20180120041312-3810f5bfed72.zip": read tcp [fddf:3978:feb1:d745::c001]:32310->[2607:f8b0:4001:c06::8d]:443: read: connection reset by peer