Version 0.11.0 is available upstream. Please consider updating! It seems that version 0.11.0 is available upstream, while the latest version in the Gentoo tree is 0.10.0-r1. You think this warning is false? Read more about it here.
Sccache is a ccache-like tool.
It is used as a compiler wrapper and avoids compilation when possible.
Sccache has the capability to utilize caching in remote storage environments,
including various cloud storage options, or alternatively, in local storage.