undefined local variable or method `assertion' for QED::Reporter::TapY:0x007f91cadb0480

[kschiess]

Using qed as qed -y | tapout, I get

/qed-2.9.1/lib/qed/reporter/tapy.rb:151:in `error': undefined local variable or method `assertion' for #<QED::Reporter::TapY:0x007f91cadb0480> (NameError)
  from [redacted]/qed-2.9.1/lib/qed/reporter/abstract.rb:73:in `call'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:320:in `block in advise!'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:320:in `each'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:320:in `advise!'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:182:in `rescue in evaluate_test'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:188:in `evaluate_test'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:100:in `evaluate'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:81:in `block in run_steps'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:80:in `each'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:80:in `run_steps'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:69:in `run'
  from [redacted]/qed-2.9.1/lib/qed/evaluator.rb:11:in `run'
  from [redacted]/qed-2.9.1/lib/qed/session.rb:149:in `block (2 levels) in run'
  from [redacted]/qed-2.9.1/lib/qed/session.rb:148:in `each'
  from [redacted]/qed-2.9.1/lib/qed/session.rb:148:in `block in run'
  from [redacted]/qed-2.9.1/lib/qed/session.rb:141:in `chdir'
  from [redacted]/qed-2.9.1/lib/qed/session.rb:141:in `run'
  from [redacted]/qed-2.9.1/lib/qed/cli/qed.rb:61:in `cli'
  from [redacted]/qed-2.9.1/lib/qed/cli/qed.rb:5:in `cli'
  from /qed/bin/qed:3:in `<main>'

This is using Ruby ruby 2.1.3p242 (2014-09-19 revision 47630) [x86_64-darwin13.0].