Double console output?

Question

Suddenly when I run my app locally, I get double console output. Does anybody know what might have caused this? The problem exists both when running Thin and Unicorn

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Answer 1

As of Rails 4.2 and the time of this posting, the only solution I'm aware of is to remove rails_12factor from the Gemfile.

Adding group: :production no longer prevents the double-logging. There is an open issue with heroku on github:

https://github.com/heroku/rails_stdout_logging/issues/1