https://proxy.golang.org/github.com/graybobo/golang.org-package-offline-cache/@v/v0.0.0-20200626051047-6608995c132f.zip: HTTP error: Head "https://proxy.golang.org/github.com/graybobo/golang.org-package-offline-cache/@v/v0.0.0-20200626051047-6608995c132f.zip": read tcp [fddf:3978:feb1:d745::c001]:25176->[2607:f8b0:4001:c74::8d]:443: read: connection reset by peer