Homebrew: Erro: update-report não deve ser chamado diretamente

Em execução brew update, recebo o seguinte:

/usr/local/Library/brew.sh: line 32: /usr/local/Library/ENV/scm/git: No such file or directory
/usr/local/Library/brew.sh: line 32: /usr/local/Library/ENV/scm/git: No such file or directory
[etc..]
Error: update-report should not be called directly!

A chamada brew configinforma o seguinte:

HOMEBREW_VERSION: 0.9.9
ORIGIN: https://github.com/Homebrew/brew.git
HEAD: 90e84453f9adda65de6b9274987d06e46caa5d37
Last commit: 4 hours ago
Core tap ORIGIN: https://github.com/Homebrew/homebrew-core
Core tap HEAD: 05ce2548bad01807c6be2aece21ab70d221755e6
Core tap last commit: 8 weeks ago
HOMEBREW_PREFIX: /usr/local
HOMEBREW_REPOSITORY: /usr/local
HOMEBREW_CELLAR: /usr/local/Cellar
HOMEBREW_BOTTLE_DOMAIN: https://homebrew.bintray.com
CPU: quad-core 64-bit ivybridge
Homebrew Ruby: 2.0.0-p648
Clang: 7.3 build 703
Git: 2.7.0 => /usr/local/bin/git
Perl: /usr/bin/perl
Python: /Users/username/anaconda/bin/python => /Users/username/anaconda/bin/python2.7
Ruby: /usr/bin/ruby => /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
Java: 1.7.0_79, 1.6.0_65-b14-468
OS X: 10.11.4-x86_64
Xcode: 7.3
CLT: 7.3.0.0.1.1457485338
X11: 2.7.8 => /opt/X11

Alguma idéia de como consertar isso? Gostaria de saber se o Sophos Antivirus pode estar causando problemas novamente ..

brew upgradeatualizará todos os pacotes instalados. Se você precisar manter uma versão específica de qualquer binário, considere usar a resposta de @ thanh-hải: https://stackoverflow.com/a/38464247/868724

Acabei de receber este erro. Eu corri brew upgradee depois brew updatenovamente e o problema parecia se resolver.

Como alternativa, tente apenas executar brew updatenovamente, conforme sugerido por @ ashley-willis.

A execução brew updatenovamente depois de obter esse erro funciona, como vi sugerido em https://discuss.circleci.com/t/brew-update-command-fails/5211 e funcionou para mim também, sem fazer nenhuma atualização nem git-fu

Edit: run cd "$(brew --repository)" && git fetch && git reset --hard origin/mastervai resolver!

Consulte https://github.com/Homebrew/brew/issues/557

Encontrei o mesmo problema quando tentei

brew tap homebrew/science
brew install opencv3
brew update

No entanto, digitando

brew update

novamente resolveu meu problema.

Updated 2 taps (caskroom/cask, homebrew/core).
==> Cleaning up /Library/Caches/Homebrew...
Removing: /Library/Caches/Homebrew/ant-1.9.7.yosemite.bottle.tar.gz... (5.4MB)
Removing: /Library/Caches/Homebrew/cmake-3.2.1.yosemite.bottle.1.tar.gz... (10.4MB)
Removing: /Library/Caches/Homebrew/gecode-4.3.3.yosemite.bottle.tar.gz... (2.8MB)
Removing: /Library/Caches/Homebrew/leptonica-1.71_1.yosemite.bottle.tar.gz... (1.9MB)
Removing: /Library/Caches/Homebrew/libpng-1.6.16.yosemite.bottle.tar.gz... (431.8KB)
Removing: /Library/Caches/Homebrew/libtiff-4.0.3.yosemite.bottle.tar.gz... (1MB)
Removing: /Library/Caches/Homebrew/minizinc-1.6.tar.gz... (18.2MB)
Removing: /Library/Caches/Homebrew/pkg-config-0.28.yosemite.bottle.2.tar.gz... (220.1KB)
Removing: /Library/Caches/Homebrew/tesseract-3.02.02_3.yosemite.bottle.tar.gz... (19MB)
==> Migrating /Library/Caches/Homebrew to /Users/zenglinwang/Library/Caches/Homebrew...
==> Deleting /Library/Caches/Homebrew...
Warning: Failed to delete /Library/Caches/Homebrew.
Please do so manually.
==> New / Updated / Deleted Formulae
.................
==> Migrating HOMEBREW_REPOSITORY (please wait)...
==> Migrated HOMEBREW_REPOSITORY to /usr/local/Homebrew!
Homebrew no longer needs to have ownership of /usr/local. If you wish you can
return /usr/local to its default ownership with:
  sudo chown root:wheel /usr/local