I have only seen 1 issue after taking advantage of #531, usage with git repos

I get errors when I have a config like this with docker: in it also.

packages:
  - .
  - extra-dep: true
  - location:
      git: ...
      subdirs: ...

When I remove the docker: section everything installs.
It seems that I need to mount my ~/.ssh directory, but I cannot figure out how to get that to work.