Buildpack fails on PWS

[hail2skins]

Attempting to push to PWS and getting a failure right on the download of Erlang:

Creating container
Successfully created container
Downloading app package...
Downloaded app package (56.7K)
-----> Checking Erlang and Elixir versions
Will use the following versions:
* Erlang 19.3
* Elixir 1.4

   Will export the following config vars:
   * Config vars DATABASE_URL
   * MIX_ENV=prod

-----> Fetching Erlang 19.3
Failed to compile droplet
Exit status 223
Destroying container
Successfully destroyed container

FAILED
Error restarting application: BuildpackCompileFailed

Not sure these issues are being watched that closely, but if anyone is, hoping for some help :).

Here's my manifest:

applications:

• name: elixir-art-special
  memory: 128M
  instances: 1
  host: elixir-art-special
  domain: cfapps.io
  buildpack: https://github.com/gogolok/cloudfoundry-buildpack-elixir
  command: mix phoenix.server
  services:
  • elixir_mysql

Here's my config:

erlang_version=19.3
elixir_version=1.4
always_rebuild=false