buildbot failure in qemu-kvm on default_x86_64_out_of_tree

The Buildbot has detected a new failure of default_x86_64_out_of_tree on qemu-kvm. Full details are available at:
http://buildbot.b1-systems.de/qemu-kvm/builders/default_x86_64_out_of_tree/builds/45

Buildbot URL: http://buildbot.b1-systems.de/qemu-kvm/

Buildslave for this Build: b1_qemu_kvm_1

Build Reason:
Build Source Stamp: [branch next] HEAD
Blamelist: =?UTF-8?q?Reimar=20D=C3=B6ffinger?= <[email protected]>,Adrian Bridgett <[email protected]>,Anthony Liguori <[email protected]>,Aurelien Jarno <[email protected]>,Avi Kivity <[email protected]>,Dustin Kirkland <[email protected]>,Gerd Hoffmann <[email protected]>,Jan Kiszka <[email protected]>,Justin M. Forbes <[email protected]>,Kevin Wolf <[email protected]>,Mark McLoughlin <[email protected]>,Markus Armbruster <[email protected]>,Stefan Weil <[email protected]>

BUILD FAILED: failed git

sincerely,
-The Buildbot