./src/news.rb:37:in `each_slice': invalid slice size (ArgumentError) from ./src/news.rb:37:in `block (2 levels) in start' from ./src/news.rb:35:in `each' from ./src/news.rb:35:in `block in start' from /usr/lib/ruby/2.5.0/benchmark.rb:293:in `measure' from ./src/news.rb:15:in `start' from src/main.rb:22:in `news' from /usr/lib/ruby/vendor_ruby/thor/command.rb:27:in `run' from /usr/lib/ruby/vendor_ruby/thor/invocation.rb:126:in `invoke_command' from /usr/lib/ruby/vendor_ruby/thor.rb:369:in `dispatch' from /usr/lib/ruby/vendor_ruby/thor/base.rb:444:in `start' from src/main.rb:44:in `
'