brew_update.log

~% brew update zsh

Initialized empty Git repository in /usr/local/.git/
remote: Counting objects: 26235, done.
remote: Compressing objects: 100% (12478/12478), done.
remote: Total 26235 (delta 13444), reused 25930 (delta 13229)
Receiving objects: 100% (26235/26235), 3.87 MiB | 98 KiB/s, done.
Resolving deltas: 100% (13444/13444), done.
From http://github.com/mxcl/homebrew
 * branch            master     -> FETCH_HEAD
error: unable to unlink old 'bin/brew' (Permission denied)


~% brew update zsh 
error: The following untracked working tree files would be overwritten by checkout:
	share/man/man1/brew.1
	share/man/man1/brew-man.1
	bin/brew
	README.md
	Library/Homebrew/utils.rb
	Library/Homebrew/update.rb
	Library/Homebrew/test/tests
	Library/Homebrew/test/testing_env.rb
	Library/Homebrew/test/testball.rb
	Library/Homebrew/test/test_versions.rb
	Library/Homebrew/test/test_utils.rb
	Library/Homebrew/test/test_updater.rb
	Library/Homebrew/test/test_string.rb
	Library/Homebrew/test/test_pathname_install.rb
	Library/Homebrew/test/test_patching.rb
	Library/Homebrew/test/test_inreplace.rb
	Library/Homebrew/test/test_hardware.rb
	Library/Homebrew/test/test_formula_install.rb
	Library/Homebrew/test/test_formula.rb
	Library/Homebrew/test/test_external_deps.rb
	Library/Homebrew/test/test_checksums.rb
	Library/Homebrew/test/test_bucket.rb
	Library/Homebrew/test/test_ENV.rb
	Library/Homebrew/test/test_ARGV.rb
	Library/Homebrew/test/tarballs/testball-0.1.tbz
	Library/Homebrew/test/tarballs/configure_fails.tar.gz
	Library/Homebrew/test/patches/noop-b.diff
	Library/Homebrew/test/patches/noop-a.diff
	Library/Homebrew/test/fixtures/updater_fixture.yaml
	Library/Homebrew/keg.rb
	Library/Homebrew/install.rb
	Library/Homebrew/hardware.rb
	Library/Homebrew/global.rb
	Library/Homebrew/formula_installer.rb
	Library/Homebrew/formula.rb
	Library/Homebrew/extend/string.rb
	Library/Homebrew/extend/pathname.rb
	Library/Homebrew/extend/ENV.rb
	Library/Homebrew/extend/ARGV.rb
	Library/Homebrew/download_strategy.rb
	Library/Homebrew/cleaner.rb
	Library/Homebrew/brew_doctor.rb
	Library/Homebrew/brew.h.rb
	Library/Homebrew/beer_events.rb
	Library/Homebrew/LICENSE
	Library/Formula/zzuf.rb
	Library/Formula/zsync.rb
	Library/Formula/zsh.rb
	Library/Formula/zookeeper.rb
	Library/Formula/znc.rb
	Library/Formula/zint.rb
	Library/Formula/zile.rb
	Library/Formula/zeromq.rb
	Library/Formula/zebra.rb
	Library/Formula/zdelta.rb
	Library/Formula/zbar.rb
	Library/Formula/yuicompressor.rb
	Library/Formula/youtube-dl.rb
	Library/Formula/yeti.rb
	Library/Formula/yconalyzer.rb
	Library/Formula/yazpp.rb
	Library/Formula/yaz.rb
	Library/Formula/yaws.rb
	Library/Formula/yasm.rb
	Library/Formula/yara.rb
	Library/Formula/yamdi.rb
	Library/Formula/yajl.rb
	Library/Formula/yaf.rb
	Library/Formula/xz.rb
	Library/Formula/xvid.rb
	Library/Formula/xu4.rb
	Library/Formula/xspringies.rb
	Library/Formula/xspin.rb
	Library/Formula/xpdf.rb
	Library/Formula/xmltoman.rb
	Library/Formula/xmlto.rb
	Library/Formula/xmlstarlet.rb
	Library/Formula/xmlrpc-c.rb
	Library/Formula/xmlformat.rb
	Library/Formula/xml2rfc.rb
	Library/Formula/xml-tooling-c.rb
	Library/Formula/xml-security-c.rb
	Library/Formula/xerces-c.rb
	Library/Formula/xdelta.rb
	Library/Formula/xdebug.rb
	Library/Formula/xchat.rb
	Library/Formula/xcache.rb
	Library/Formula/xaric.rb
	Library/Formula/xar.rb
	Library/Formula/xapian.rb
	Library/Formula/x264.rb
	Library/Formula/wyrd.rb
	Library/Formula/wxmac.rb
	Library/Formula/wtf.rb
	Library/Formula/wrangler.rb
	Library/Formula/wordnet.rb
	Library/Formula/woof.rb
	Library/Formula/wol.rb
	Library/Formula/wkhtmltopdf.rb
	Library/Formula/wireshark.rb
	Library/Formula/winetricks.rb
	Library/Formula/wine.rb
	Library/Formula/willgit.rb
	Library/Formula/whohas.rb
	Library/Formula/wget.rb
	Library/Formula/weechat.rb
	Library/Formula/webkit2png.rb
	Library/Formula/webfs.rb
	Library/Formula/webalizer.rb
	Library/Formula/wdiff.rb
	Library/Formula/wavpack.rb
	Library/Formula/watch.rb
	Library/Formula/wakeonlan.rb
	Library/Formula/w3m.rb
	Library/Formula/vtk.rb
	Library/Formula/vsftpd.rb
	Library/Formula/vrpn.rb
	Library/Formula/vpnc.rb
	Library/Formula/vorbis-tools.rb
	Library/Formula/voldemort.rb
	Library/Formula/vobcopy.rb
	Library/Formula/vnstat.rb
	Library/Formula/vmalloc.rb
	Library/Formula/visualboyadvance.rb
	Library/Formula/virtuoso.rb
	Library/Formula/vips.rb
	Library/Formula/vip.rb
	Library/Formula/vilistextum.rb
	Library/Formula/vice.rb
	Library/Formula/vcprompt.rb
	Library/Formula/vcodex.rb
	Library/Formula/vcdimager.rb
	Library/Formula/vbindiff.rb
	Library/Formula/varnish.rb
	Library/
Aborting
Error: Failure while executing: git checkout -q master