$ rspec -c specs.rb

Randomized with seed 58515
..F...

Failures:

  1) this test should fail
     Failure/Error: expect(false).to eql(true)
       
       expected: true
            got: false
       
       (compared using eql?)
     # ./specs.rb:18:in `block (2 levels) in '

Finished in 0.00138 seconds (files took 0.11502 seconds to load)
6 examples, 1 failure

Failed examples:

rspec ./specs.rb:17 # this test should fail

Randomized with seed 58515