JRuby-HEAD & Rake = :(

error.txt

rake db:migrate
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/version.rb:2 warning: already initialized constant VERSION
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/version.rb:5 warning: already initialized constant MAJOR
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/version.rb:5 warning: already initialized constant MINOR
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/version.rb:5 warning: already initialized constant BUILD
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/version.rb:5 warning: already initialized constant PATCH
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/version.rb:6 warning: already initialized constant NUMBERS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake.rb:27 warning: already initialized constant RAKEVERSION
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/early_time.rb:17 warning: already initialized constant EARLY
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/alt_system.rb:32 warning: already initialized constant WINDOWS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/application.rb:31 warning: already initialized constant DEFAULT_RAKEFILES
WARNING: Possible conflict with Rake extension: String#ext already exists
WARNING: Possible conflict with Rake extension: String#pathmap already exists
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/task_arguments.rb:77 warning: already initialized constant EMPTY_TASK_ARGS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/invocation_chain.rb:49 warning: already initialized constant EMPTY
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_utils.rb:9 warning: already initialized constant RUBY
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_utils.rb:86 warning: already initialized constant LN_SUPPORTED
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_utils_ext.rb:16 warning: already initialized constant DEFAULT
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/dsl_definition.rb:150 warning: already initialized constant DeprecatedCommands
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:44 warning: already initialized constant ARRAY_METHODS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:47 warning: already initialized constant MUST_DEFINE
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:51 warning: already initialized constant MUST_NOT_DEFINE
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:55 warning: already initialized constant SPECIAL_RETURN
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:61 warning: already initialized constant DELEGATING_METHODS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:364 warning: already initialized constant DEFAULT_IGNORE_PATTERNS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake/file_list.rb:370 warning: already initialized constant DEFAULT_IGNORE_PROCS
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake.rb:68 warning: already initialized constant FileList
/Users/bhays/.rvm/gems/jruby-head/gems/rake-0.9.2.2/lib/rake.rb:69 warning: already initialized constant RakeFileUtils
rake aborted!
stack level too deep