binstubs needed?

battle_for_control.txt

    generate  blacklight:search_builder
Looks like your app's ./bin/rails is a stub that was generated by Bundler.

In Rails 4, your app's bin/ directory contains executables that are versioned
like any other source code, rather than stubs that are generated on demand.

Here's how to upgrade:

  bundle config --delete bin    # Turn off Bundler's stub generator
  rake rails:update:bin         # Use the new Rails 4 executables
  git add bin                   # Add bin/ to source control

You may need to remove bin/ from your .gitignore as well.

When you install a gem whose executable you want to use in your app,
generate it and add it to source control:

  bundle binstubs some-gem-name
  git add bin/new-executable

...

binstub.txt

Bundle complete! 33 Gemfile dependencies, 128 gems now installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
    generate  blacklight:assets
/Users/atz/.rvm/rubies/ruby-2.3.1/bin/ruby: No such file or directory -- bin/rails (LoadError)
    generate  blacklight:document
/Users/atz/.rvm/rubies/ruby-2.3.1/bin/ruby: No such file or directory -- bin/rails (LoadError)
    generate  blacklight:search_builder
/Users/atz/.rvm/rubies/ruby-2.3.1/bin/ruby: No such file or directory -- bin/rails (LoadError)
    generate  blacklight:models
/Users/atz/.rvm/rubies/ruby-2.3.1/bin/ruby: No such file or directory -- bin/rails (LoadError)
    generate  blacklight:user
/Users/atz/.rvm/rubies/ruby-2.3.1/bin/ruby: No such file or directory -- bin/rails (LoadError)
    generate  blacklight:controller
/Users/atz/.rvm/rubies/ruby-2.3.1/bin/ruby: No such file or directory -- bin/rails (LoadError)