how rust `cargo` should work!

destructive-cargo-test.bash

#!/bin/bash -x

sudo rm -rf .cargo/ ~/.cargo/ /usr/local/lib/cargo/  \
&& sudo cargo init  \
&& sudo cargo sync  \
&& cargo install rustx  \
&& cargo install --mode=local rustx  \
&& cargo install -g rustx  \
&& cargo install --mode=user rustx  \
&& sudo cargo install -G rustx  \
&& sudo cargo install --mode=system rustx  \
&& sudo cargo install --test rustx  \
&& cargo search rustx  \
&& cargo search rustic  \
&& cargo list  \
&& cargo list central  \
&& echo "Done."