Are these new warning messages actionable?
Is it safe to remain blissfully ignorant of what's going on here?
$ ruby --version
ruby 1.8.3 (2005-09-21) [i386-cygwin]
(eval):2: warning: method redefined; discarding old taguri
(eval):14: warning: redefine yaml_tag_subclasses?
(eval):2: warning: method redefined; discarding old taguri
(eval):14: warning: redefine yaml_tag_subclasses?
(eval):2: warning: method redefined; discarding old taguri
(eval):14: warning: redefine yaml_tag_subclasses?
(eval):2: warning: method redefined; discarding old taguri
(eval):14: warning: redefine yaml_tag_subclasses?
(eval):2: warning: method redefined; discarding old taguri
(eval):14: warning: redefine yaml_tag_subclasses?
(eval):2: warning: method redefined; discarding old taguri
(eval):14: warning: redefine yaml_tag_subclasses?
(eval):2: warning: method redefined; discarding old taguri
/usr/lib/ruby/1.8/yaml/types.rb:13: warning: method redefined; discarding old initialize
/usr/lib/ruby/1.8/yaml/types.rb:28: warning: method redefined; discarding old initialize
(eval):2: warning: method redefined; discarding old taguri
/usr/lib/ruby/1.8/yaml.rb:133: warning: instance variable @input not initialized
/usr/lib/ruby/1.8/yaml.rb:133: warning: instance variable @input not initialized