Rust toolkit for CI actions

anode -- action without node

# Compile

install
- libunwind-static
- xz-static

get C runtime libraries from somewhere (I literally copied them from whatever `gcc` found them in on my system; I think that on actual alpine system they will be found with no problem)

test is compiled with the following command:
```sh
RUSTFLAGS="-Lunwind -L/lib/musl/lib -Lcrt -Lxz -llzma" cargo +nightly b -Z build-std -p tests --release --target x86_64-unknown-linux-musl -v
```