title: binding.pry ignored by rspec
body: <p>I am expecting a pry session to be opened in my console during execution of <code>rspec</code>. Am I doing something incorrect? Or expecting the wrong behavior?</p>
  
  <p>Gemfile:</p>
  
  <pre><code>group :development, :test do
    gem 'rspec'
    gem 'rspec-rails'
    ...
    gem 'pry-rails'
    ...
  end
  </code></pre>
  
  <p>Gemfile.lock:</p>
  
  <pre><code>...
  pry (0.10.0)
  ...
  rspec-rails (3.0.1)
  </code></pre>
  
  <p>spec:</p>
  
  <pre><code>require 'rails_helper'
  
  RSpec.describe Account, type: :model, do
    let!(:acct) { FactoryGirl.create(:account) }
  
    describe '#hash' do
      it 'should ...' do
        acct.property = 5
        binding.pry
        expect(acct).to_not be_nil
      end
    end
  
  end
  </code></pre>
  
  <p>console:</p>
  
  <pre><code>% rspec
  ...
  Failed examples: 
  ...
  Randomized with seed 59654
  </code></pre>