brew install failed

gistfile1.txt

==> Downloading https://github.com/defunkt/hub/tarball/v1.6.1
File already downloaded in /Users/djavia/Library/Caches/Homebrew
/usr/bin/tar xf /Users/djavia/Library/Caches/Homebrew/hub-1.6.1.tgz
==> rake install prefix=/usr/local/Cellar/hub/1.6.1
rake install prefix=/usr/local/Cellar/hub/1.6.1
==> Exit Status: 
http://github.com/mxcl/homebrew/blob/master/Library/Formula/hub.rb#L10
==> Environment
HOMEBREW_VERSION: 0.8
HEAD: a0b940acb775b4affebedea800541f343aac79bf
HOMEBREW_PREFIX: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_LIBRARY_PATH: /usr/local/Library/Homebrew
Hardware: 8-core 64-bit sandybridge
OS X: 10.7.1
Kernel Architecture: x86_64
Ruby: 1.8.7-249
/usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
Xcode: 4.1
GCC-4.0: N/A 
GCC-4.2: build 5666 
LLVM: build 2335 
MacPorts or Fink? false
X11 installed? true
==> Build Flags
CC: /usr/bin/llvm-gcc => /usr/llvm-gcc-4.2/bin/llvm-gcc-4.2
CXX: /usr/bin/llvm-g++ => /usr/llvm-gcc-4.2/bin/llvm-g++-4.2
LD: /usr/bin/llvm-gcc => /usr/llvm-gcc-4.2/bin/llvm-gcc-4.2
CFLAGS: -O3 -march=core2 -w -pipe
CXXFLAGS: -O3 -march=core2 -w -pipe
MAKEFLAGS: -j8

Error: Failed executing: rake install prefix=/usr/local/Cellar/hub/1.6.1
These existing issues may help you:
    https://github.com/mxcl/homebrew/issues/5150
Otherwise, please report the bug:
    https://github.com/mxcl/homebrew/wiki/checklist-before-filing-a-new-issue



## brew doctor


Unbrewed dylibs were found in /usr/local/lib.

If you didn't put them there on purpose they could cause problems when
building Homebrew formulae, and may need to be deleted.

Unexpected dylibs:
    /usr/local/lib/libglib-2.0.0.dylib
    /usr/local/lib/libintl.8.0.2.dylib

==> You have uncommitted modifications to Homebrew core
Unless you know what you are doing, you should: git reset --hard