The golang.org/x/mod package/dependency triggers Git "invalid version" error in v0.20.0 release.

[thisisaaronland]

Describe the bug

The golang.org/x/mod package/dependency triggers Git "invalid version" error.

To Reproduce

Add "require gocloud.dev v0.20.0" to go.mod which yields the following error when trying to build code:

go: found gocloud.dev/blob in gocloud.dev v0.20.0
go: [email protected] requires
	cloud.google.com/[email protected] requires
	cloud.google.com/go/[email protected] requires
	golang.org/x/[email protected] requires
	golang.org/x/[email protected]: invalid version: git fetch --unshallow -f origin in /home/centos/go/pkg/mod/cache/vcs/13df7481b5cc3358460b717a6142fe8dbaae7652e5d05689849f419ffd40ac12: exit status 128:
	fatal: git fetch-pack: expected shallow list

Steps to reproduce the behavior.

Expected behavior

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

Version

v0.20.0

If I downgrade to v0.19.0 the problem goes away.

Additional context

n/a

[vangent]

This looks like it might be related to golang/go#38373, can you take a look? Which OS and go and git versions are you using?

[thisisaaronland]

I will check the version of Git, shortly. I am using Go 1.14.4.