Hi,

Can anyone help with some gerrit / git foo? I'd like to create a
personal sandbox branch.

Following the instructions here:

https://www.zephyrproject.org/doc/contribute/gerrit_practices.html

... I execute the commands:

git checkout -b sandbox/MarcusShawcroft/k64f-enet
...
git push --set-upstream upstream
HEAD:refs/heads/sandbox/MarcusShawcroft/k64f-enet


Which results in:
remote: Processing changes: refs: 1, done
To ssh://MarcusShawcroft(a)gerrit.zephyrproject.org:29418/zephyr
! [remote rejected] HEAD -> sandbox/MarcusShawcroft/k64f-enet
(prohibited by Gerrit)
error: failed to push some refs to
'ssh://MarcusShawcroft(a)gerrit.zephyrproject.org:29418/zephyr'

Can anyone shed light on what I'm doing wrong, or suggest how I debug
this further?

Thanks
/Marcus