go get gopkg.in/natefinch/npipe.v2
# cd .; git clone -- https://gopkg.in/natefinch/npipe.v2 E:\Gopath\src\gopkg.in\natefinch\npipe.v2
Cloning into 'E:\Gopath\src\gopkg.in\natefinch\npipe.v2'...
fatal: unable to access 'https://gopkg.in/natefinch/npipe.v2/': SSL certificate problem: certificate has expired
package gopkg.in/natefinch/npipe.v2: exit status 128
解决办法
git config --global http.sslVerify false