Script succeeded when run again immediately afterwards with no other changes to the system. May have been a problem with GitHub?
+ [[ ! -d /opt/stack/nova ]]
+ git clone https://github.com/openstack/nova.git /opt/stack/nova
Cloning into '/opt/stack/nova'...
remote: Counting objects: 110444, done.
remote: Compressing objects: 100% (22617/22617), done.
fatal: The remote end hung up unexpectedly.53 MiB | 556 KiB/s
fatal: early EOF
fatal: index-pack failed
+ cd /opt/stack/nova
/home/samj/devstack/functions: line 164: cd: /opt/stack/nova: No such file or directory
+ git checkout master
Already on 'master'
+ git_clone https://github.com/openstack/python-keystoneclient /opt/stack/python-keystoneclient master