fwiw, the complaint is:
```
 * Cannot run git checkout v0.1.1 in /build/amd64-generic/tmp/portage/dev-db/etcd-0.1.1/work/etcd-0.1.1.
 * Is /mnt/host/source/src/third_party/etcd up to date? Try running repo sync.
 * Falling back to git.eclass...
```