Can't install via Homebrew

[robertorubioguardia]

Hi guys, just tried to install using brew as listed on your website and got:

brew install http://download.panamax.io/installer/brew/panamax.rb && panamax init
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 4 taps (heroku/brew, homebrew/core, homebrew/php, homebrew/services).
==> Updated Formulae
heroku ✔ fuego node@8
heroku/brew/heroku ✔ fuse-emulator nq
heroku/brew/heroku-node ✔ geth nspr
influxdb ✔ getmail odpi
node ✔ gifski onetime
abcmidi gimme opencv
app-engine-java gtk+ openimageio
arangodb gutenberg php
artifactory gxml plank
aws-sdk-cpp homebrew/php/libmustache protobuf
bazel httpd pyqt
bit igv qpdf
bitcoin jbake qpid-proton
burp jenkins qscintilla2
calabash just radare2
cayley kedge root
conan kerl roswell
diffuse kompose s-nail
django-completion libsass sassc
docfx libu2f-host saxon
docker-machine libvirt sbcl
docker-machine-completion lorem sparkey
dub mapnik spigot
eralchemy maxwell syncthing
feh mercurial tile38
flow meson twarc
fluent-bit mongo-cxx-driver vnstat
flyway nanopb-generator wireguard-tools
fn nco yaml-cpp
folly node@4 yarn
fonttools node@6

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==> Downloading http://download.panamax.io/installer/panamax-0.6.5.tar.gz
Already downloaded: /Users/robertorubio/Library/Caches/Homebrew/panamax-0.6.5.tar.gz
Warning: Cannot verify integrity of panamax-0.6.5.tar.gz
A checksum was not provided for this resource
For your reference the SHA256 is: b59f21e5a821a3886eab0e62f85fc89d8fedea6099b79d3447906dfc36d163d7
==> ./configure --prefix=/usr/local/Cellar/panamax/0.6.5 --var=/usr/local/var/pa
==> make install
Last 15 lines from /Users/robertorubio/Library/Logs/Homebrew/panamax/02.make:
2018-03-07 11:14:25 -0500

make
install

mkdir -p ""/usr/local/Cellar/panamax/0.6.5"/.panamax"
cp -Ra . ""/usr/local/Cellar/panamax/0.6.5"/.panamax"
ln -nsf ""/usr/local/Cellar/panamax/0.6.5"/.panamax"/panamax /usr/local/bin
ln: /usr/local/bin/panamax: Operation not permitted
make: *** [install] Error 1

Do not report this issue to Homebrew/brew or Homebrew/core!