bug#37695: `guix pull` fails to build guix-daemon

[Steven vanZyl]

Hello Guix,

As of the latest commit to master 011312823c running `guix pull` fails. 
A number of other members of the #guix IRC channel report the same problem.

It seems to have some issue with git and the checkout errors causing 
guix-daemon to fail to build.

Attached is the stderr of running `guix pull` (stderr.txt)

If you need any additional information please just ask.

OS: OpenSUSE Tumbleweed 20191007
guix --version: guix (GNU Guix) 1.0.1

--
- rushsteve1<address@hidden>

stderr.txt
Description: Text document