Trouble installing Ruby (Failed to download resource "readline--patch")
<p>I'm getting this error when I try to install Ruby. I've tried looking at <a href="https://github.com/rbenv/ruby-build/issues/526" rel="nofollow noreferrer">this</a> and <a href="https://stackoverflow.com/questions/31777019/installing-rails-on-mac-os-fails-with-several-errors">this</a> but to no avail</p>

<p><a href="https://i.stack.imgur.com/CtPiC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CtPiC.png" alt=""></a></p>

<pre><code>➜  ~ brew install ruby
Warning: You are using OS X 10.12.
We do not provide support for this pre-release version.
You may encounter build failures or other breakages.
Please create pull-requests instead of filing issues.
==&gt; Installing dependencies for ruby: readline, libyaml, makedepend
==&gt; Installing ruby dependency: readline
==&gt; Downloading https://ftpmirror.gnu.org/readline/readline-6.3.tar.gz
==&gt; Downloading from http://mirror.team-cymru.org/gnu/readline/readline-6.3.tar.gz
######################################################################## 100.0%
==&gt; Downloading https://gist.githubusercontent.com/jacknagel/d886531fb6623b60b2af/

curl: (22) The requested URL returned error: 404 Not Found
Error: Failed to download resource "readline--patch"
Download failed: https://gist.githubusercontent.com/jacknagel/d886531fb6623b60b2af/raw/746fc543e56bc37a26ccf05d2946a45176b0894e/readline-6.3.8.diff
</code></pre>