This includes a basic test that attempts to compile the rustfmt crate.
Ensures that the workspace is always removed at the end of the build. It
utilizes available caches to speed up the build process and parallelizes
the build across i386, x86_64, arm32, and arm64 targets.
Signed-off-by: Derek Straka <derek@asterius.io>
So that we can use the meta-rust layer as the final layer with some
configuration (for the purposes of testing). These configs should be not
used by actual end users.
Signed-off-by: Doug Goldstein <cardoe@cardoe.com>