$ heroku login
Logging in... done
Logged in as EMAIL
$ heroku container:login
Login Succeeded
$ docker tag IMG_ID registry.heroku.com/APP/web
$ docker push registry.heroku.com/APP/web
The push refers to repository [registry.heroku.com/APP/web]
ABC: Layer already exists
XYZ: Layer already exists
...
lastest: digest: sha256:NUMBER size: SIZE
$ heroku container:release registry.heroku.com/APP/web
Expected response to be successful, got 404