This was resolved by Heroku's support team. I had accidentally included my vendor/bundle directory in the repo. Removing it and re-creating the app allowed the gems to install with their native extensions.
-- You received this message because you are subscribed to the Google Groups "Heroku" group. To view this discussion on the web visit https://groups.google.com/d/msg/heroku/-/v-yqZIamp2QJ. To post to this group, send email to heroku@googlegroups.com. To unsubscribe from this group, send email to heroku+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/heroku?hl=en.
