In 2.5.0, it makes a .rake file that sets some environment vars but apparently doesn't do anything else.
In HEAD, it apparently gets into an infinite loop during the Annotate.load_tasks call.
Also, the docs say rails g annotate:install not rails g annotate_models:install
rails g annotate:install
rails g annotate_models:install
I reiterate the 1st and 3rd points made above.
Changing the options in the "set_annotation_options" task doesn't cause different behavior for "annotate".