Trying https://github.com/tootsuite/mastodon/pull/5158

01.sh

$ git clone https://github.com/tootsuite/mastodon.git mastodon-pr515
$ cd mastodon-pr5158
$ git remote add Kjwon15 https://github.com/Kjwon15/mastodon.git
$ git fetch Kjwon15
$ git merge Kjwon15/streaming
$ heroku create
Creating app... done, ⬢ stark-sands-75673
https://stark-sands-75673.herokuapp.com/ | https://git.heroku.com/stark-sands-75673.git
$ heroku buildpacks:add https://github.com/heroku/heroku-buildpack-apt
$ heroku buildpacks:add heroku/nodejs
$ heroku buildpacks:add heroku/ruby
$ heroku buildpacks:add https://github.com/ryandotsmith/nginx-buildpack
$ heroku buildpacks:add https://github.com/danp/heroku-buildpack-runit
$ heroku addons:create heroku-postgresql
$ heroku addons:create heroku-redis
$ heroku config:set SMTP_FROM_ADDRESS=notifications@localhost
$ git push heroku master
  :
remote: -----> nginx-buildpack app detected
remote: cp: cannot stat 'bin/nginx-heroku-16': No such file or directory
remote:  !     Push rejected, failed to compile nginx-buildpack app.
remote:
remote:  !     Push failed
remote: Verifying deploy...
remote:
remote: ! Push rejected to stark-sands-75673.
remote:
To https://git.heroku.com/stark-sands-75673.git
 ! [remote rejected]   master -> master (pre-receive hook declined)
error: failed to push some refs to 'https://git.heroku.com/stark-sands-75673.git'