Actual behavior A clear and concise description of what the bug is.

go get this project does not work anymore if rsc.io/quote/v3 is not cached and go proxy is not used.

Expected behavior A clear and concise description of what you expected to
happen.

go get this project should work.

To Reproduce Steps to reproduce the behavior

1. Clear go mod cache
2. Execute go get without go proxy:

$ GO111MODULE=on GOPROXY=direct go get github.com/golang/mock/mockgen@v1.4.3
go: downloading github.com/golang/mock v1.4.3
go: found github.com/golang/mock/mockgen in github.com/golang/mock v1.4.3
go get: github.com/golang/mock@v1.4.3 requires
	rsc.io/quote/v3@v3.1.0: unrecognized import path "rsc.io/quote/v3": reading https://rsc.io/quote/v3?go-get=1: 503 Service Unavailable

This is due to rsc/quote#4 but it seems this dependency to rsc.io/quote/v3 may be dropped, so this should be the solution if possible.

Additional Information

• gomock mode (reflect or source): N/A
• gomock version or git ref: master
• golang version: go1.14.3 linux/amd64

Triage Notes for the Maintainers