Reduce memory consumption in rake assets:precompile
<p><strong>Problem:</strong><br>
I'm running out of RAM while performing the <code>rake assets:precompile</code> task in an automated build. Are there any strategies to do an incremental precompile, or in some other way perform the precompile stage without consuming as much RAM? It appears as though that task consumes around 850 MB more than the baseline for the build.</p>

<p><strong>Context</strong>:<br>
I'm trying to get a single Docker container Bitbucket Pipelines version of our automated build. Application stack includes Rails 4.2.7, PostgreSQL 9.3, Java 8, Maven 3.3.9 and JRuby 9.1.2.0. I've tried creating the image based off of Debian Jessie and also off of Alpine Linux, but it doesn't make much difference in the baseline memory. </p>