https://proxy.golang.org/github.com/ffrizzo/terraform/@v/v0.8.2-0.20161219200057-992e12335f3d.zip: HTTP error: Head "https://proxy.golang.org/github.com/ffrizzo/terraform/@v/v0.8.2-0.20161219200057-992e12335f3d.zip": read tcp [fddf:3978:feb1:d745::c001]:21969->[2607:f8b0:4001:c06::8d]:443: read: connection reset by peer