A plain docker environment for building static binaries compiled with rust and linked against musl instead of glibc. Built nightly on travis.

This is only useful if you require external C dependencies, because otherwise you could do rustup target add x86_64-unknown-linux-musl.

This container comes with a bunch of statically compiled C libraries using musl-gcc so that we can statically link against these as well.

If you already have rustup installed on the machine that should compile, you might consider cross as a more general solution for cross compiling rust binaries.
Usage

Pull and run from a rust project root:

docker pull clux/muslrust
docker run -v $PWD:/volume --rm -t clux/muslrust cargo build

You should have a static executable in the target folder:

ldd target/x86_64-unknown-linux-musl/debug/EXECUTABLE
not a dynamic executable

From there on, you can include it in a blank docker image (because everything you need is included in the binary) and perhaps end up with a 5MB docker blog image.