searchfail

makinami:~ shinichi$ brew doctor
Your system is ready to brew.
makinami:~ shinichi$ HOMEBREW_MAKE_JOBS=1 VERBOSE=1 brew search node
Error: unknown version :intel
Please report this bug:
    https://github.com/mistydemeo/tigerbrew/wiki/troubleshooting
/usr/local/Library/Homebrew/os/mac/version.rb:19:in `from_symbol'
/usr/local/Library/Homebrew/os/mac/version.rb:18:in `fetch'
/usr/local/Library/Homebrew/os/mac/version.rb:18:in `from_symbol'
/usr/local/Library/Homebrew/requirements/minimum_macos_requirement.rb:7:in `initialize'
/usr/local/Library/Homebrew/dependency_collector.rb:101:in `new'
/usr/local/Library/Homebrew/dependency_collector.rb:101:in `parse_symbol_spec'
/usr/local/Library/Homebrew/dependency_collector.rb:75:in `parse_spec'
/usr/local/Library/Homebrew/dependency_collector.rb:63:in `build'
/usr/local/Library/Homebrew/dependency_collector.rb:50:in `fetch'
/usr/local/Library/Homebrew/dependency_collector.rb:50:in `fetch'
/usr/local/Library/Homebrew/dependency_collector.rb:38:in `add'
/usr/local/Library/Homebrew/software_spec.rb:151:in `depends_on'
/usr/local/Library/Homebrew/formula.rb:1709:in `depends_on'
/usr/local/Library/Homebrew/formula.rb:1709:in `each'
/usr/local/Library/Homebrew/formula.rb:1709:in `depends_on'
/usr/local/Library/Formula/node.rb:24:in `load_formula'
/usr/local/Library/Homebrew/formulary.rb:36:in `load_formula_from_path'
/usr/local/Library/Homebrew/formulary.rb:85:in `load_file'
/usr/local/Library/Homebrew/formulary.rb:76:in `klass'
/usr/local/Library/Homebrew/formulary.rb:72:in `get_formula'
/usr/local/Library/Homebrew/formulary.rb:207:in `factory'
/usr/local/Library/Homebrew/cmd/search.rb:144:in `search_formulae'
/usr/local/Library/Homebrew/cmd/search.rb:143:in `map'
/usr/local/Library/Homebrew/cmd/search.rb:143:in `search_formulae'
/usr/local/Library/Homebrew/cmd/search.rb:44:in `search'
/usr/local/Library/brew.rb:127:in `send'
/usr/local/Library/brew.rb:127