Error: private method `cxx=' called for #<Object:0x007fa6040b5250>

[datomnurdin]

I got this error message when installing via brew

==> Installing caffe from mitmul/caffe
==> Installing dependencies for mitmul/caffe/caffe: boost-std, snappy-std
==> Installing mitmul/caffe/caffe dependency: boost-std
==> Downloading http://downloads.sourceforge.net/project/boost/boost/1.55.0/boos
Already downloaded: /Library/Caches/Homebrew/boost-std-1.55.0.tar.bz2
Error: private method `cxx=' called for #<Object:0x007fa6040b5250>
Please report this bug:
    https://git.io/brew-troubleshooting
/usr/local/Library/Taps/mitmul/homebrew-caffe/boost-std.rb:73:in `install'
/usr/local/Library/Homebrew/build.rb:130:in `block in install'
/usr/local/Library/Homebrew/formula.rb:926:in `block in brew'
/usr/local/Library/Homebrew/formula.rb:1546:in `block in stage'
/usr/local/Library/Homebrew/resource.rb:92:in `block in unpack'
/usr/local/Library/Homebrew/extend/fileutils.rb:17:in `mktemp'
/usr/local/Library/Homebrew/resource.rb:88:in `unpack'
/usr/local/Library/Homebrew/resource.rb:81:in `stage'
/usr/local/Library/Homebrew/formula.rb:1536:in `stage'
/usr/local/Library/Homebrew/formula.rb:922:in `brew'
/usr/local/Library/Homebrew/build.rb:108:in `install'
/usr/local/Library/Homebrew/build.rb:177:in `<main>'

Please advice. Thank you.