[ndowens@nixos:~/nixpkgs]$ nix-shell -p nox --run "nox-review wip"
==> We're in a git repo, trying to fetch it
error: while evaluating ‘callPackageWith’ at /home/ndowens/nixpkgs/lib/customisation.nix:95:35, called from /home/ndowens/nixpkgs/pkgs/top-level/all-packages.nix:18074:14:
while evaluating ‘makeOverridable’ at /home/ndowens/nixpkgs/lib/customisation.nix:54:24, called from /home/ndowens/nixpkgs/lib/customisation.nix:99:8:
undefined variable ‘licenses’ at /home/ndowens/nixpkgs/pkgs/applications/editors/e3editor/default.nix:17:11
Traceback (most recent call last):
  File "/nix/store/7am4pygv9bmhj2h4rzh6rlwrpvsihl2f-nox-0.0.5/bin/.nox-review-wrapped", line 12, in <module>
    sys.exit(cli())
  File "/nix/store/d88wdn74mq0rks901snnrw8javbgs9wm-python3.5-click-6.6/lib/python3.5/site-packages/click/core.py", line 716, in __call__
    return self.main(*args, **kwargs)
  File "/nix/store/d88wdn74mq0rks901snnrw8javbgs9wm-python3.5-click-6.6/lib/python3.5/site-packages/click/core.py", line 696, in main
    rv = self.invoke(ctx)
  File "/nix/store/d88wdn74mq0rks901snnrw8javbgs9wm-python3.5-click-6.6/lib/python3.5/site-packages/click/core.py", line 1060, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/nix/store/d88wdn74mq0rks901snnrw8javbgs9wm-python3.5-click-6.6/lib/python3.5/site-packages/click/core.py", line 889, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/nix/store/d88wdn74mq0rks901snnrw8javbgs9wm-python3.5-click-6.6/lib/python3.5/site-packages/click/core.py", line 534, in invoke
    return callback(*args, **kwargs)
  File "/nix/store/d88wdn74mq0rks901snnrw8javbgs9wm-python3.5-click-6.6/lib/python3.5/site-packages/click/decorators.py", line 17, in new_func
    return f(get_current_context(), *args, **kwargs)
  File "/nix/store/7am4pygv9bmhj2h4rzh6rlwrpvsihl2f-nox-0.0.5/lib/python3.5/site-packages/nox/review.py", line 82, in wip
    packages('.'))
  File "/nix/store/7am4pygv9bmhj2h4rzh6rlwrpvsihl2f-nox-0.0.5/lib/python3.5/site-packages/nox/nixpkgs_repo.py", line 81, in packages
    universal_newlines=True)
  File "/nix/store/42p7bp41vr94bb8ip0nq0v91fcb8ixmr-python3-3.5.2/lib/python3.5/subprocess.py", line 626, in check_output
    **kwargs).stdout
  File "/nix/store/42p7bp41vr94bb8ip0nq0v91fcb8ixmr-python3-3.5.2/lib/python3.5/subprocess.py", line 708, in run
    output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command '['nix-env', '-f', '.', '-qaP', '--out-path', '--show-trace']' returned non-zero exit status 1