Installing failed

Hi there, I am trying to install Heimdall suite using brew. It fails trying to install the Cask section. Terminal output below

brew install heimdall-suite --cask
==> Caveats
heimdall-suite requires a kernel extension to work.
If the installation fails, retry after you enable it in:
  System Preferences → Security & Privacy → General


For more information, refer to vendor documentation or this Apple Technical Note:
  https://developer.apple.com/library/content/technotes/tn2459/_index.html


==> Downloading https://bitbucket.org/benjamin_dobell/heimdall/downloads/heimdal
Already downloaded: /Users/eeeaaaooo/Library/Caches/Homebrew/downloads/dd399b7fba68601b77b9734df824f20ebafeff80dddac779b4254093c2979d5c--heimdall-suite-1.4.0-mac.dmg
==> Installing Cask heimdall-suite
==> Running installer for heimdall-suite; your password may be necessary.
Package installers may write to any location; options such as `--appdir` are ignored.
Password:
installer: Package name is Heimdall Suite 1.4.0
installer: Installing at base path /
installer: The install failed. (The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance. The package is attempting to install content to the system volume.)
==> Purging files for version 1.4.0 of Cask heimdall-suite
Error: Failure while executing; `/usr/bin/sudo -E -- /usr/bin/env LOGNAME=Jenna\\\ Williams USER=Jenna\\\ Williams USERNAME=Jenna\\\ Williams /usr/sbin/installer -pkg /usr/local/Caskroom/heimdall-suite/1.4.0/Heimdall\ Suite\ 1.4.0.pkg -target /` exited with 1. Here's the output:
installer: Package name is Heimdall Suite 1.4.0
installer: Installing at base path /
installer: The install failed. (The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance. The package is attempting to install content to the system volume.)
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