rails3b3 tests: tons of warnings

Hello everybody, I've just tried to run the test suite of rails 3 beta 3 but I get a lot of warnings: rails3b3_tests_warnings · GitHub

This is my `rvm info`: gist:367001 · GitHub

Note that this is a fresh installation of rvm, ruby 1.9.2-head and rails 3b3 (subsequent to a "rvm implode").

I suppose this is related to: http://github.com/carlhuda/bundler/issues/issue/51/#issue/51

Does this behavior modifies in some way the results of the tests?