After encountering and describing this error I realized I could just brew install, but this is still an odd error to have encountered.
sophie:go pineapple$ GO15VENDOREXPERIMENT=1 go get github.com/keybase/client/go/keybase
# github.com/keybase/client/go/service
src/github.com/keybase/client/go/service/gregor.go:859: reader.Reset undefined (type *bytes.Reader has no field or method Reset)
sophie:go pineapple$ GO15VENDOREXPERIMENT=1 go install -tags production github.com/keybase/client/go/keybase
# github.com/keybase/client/go/service
src/github.com/keybase/client/go/service/gregor.go:859: reader.Reset undefined (type *bytes.Reader has no field or method Reset)
After encountering and describing this error I realized I could just
brew install
, but this is still an odd error to have encountered.