Broken benchmark

[korun]

Hello!
I trying run benchmark, but term-ansicolor tests raises ArgumentError. O_o

$ ruby --version
ruby 2.0.0p481 (2014-05-08 revision 45883) [i686-linux]

$ bundle exec rake benchmark
Rehearsal ------------------------------------------------------------------
cycle                            0.030000   0.000000   0.030000 (  0.033609)
paint                            0.320000   0.000000   0.320000 (  0.311577)
term-ansicolor                 rake aborted!
ArgumentError: Bad number of arguments for RGB color definition, should be 3
/home/user/.rvm/gems/ruby-2.0.0-p481/gems/rainbow-1.1.4/lib/ansi_color.rb:53:in `code_from_rgb'
/home/user/.rvm/gems/ruby-2.0.0-p481/gems/rainbow-1.1.4/lib/ansi_color.rb:27:in `code'
/home/user/.rvm/gems/ruby-2.0.0-p481/gems/rainbow-1.1.4/lib/rainbow.rb:33:in `foreground'
(eval):2:in `blue'
/home/user/paint/Rakefile:89:in `block (4 levels) in <top (required)>'
/home/user/paint/Rakefile:88:in `times'
/home/user/paint/Rakefile:88:in `block (3 levels) in <top (required)>'
/home/user/paint/Rakefile:72:in `block in <top (required)>'
/home/user/.rvm/gems/ruby-2.0.0-p481/bin/ruby_executable_hooks:15:in `eval'
/home/user/.rvm/gems/ruby-2.0.0-p481/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => benchmark