In order for this to be build properly, (i think) you must put the 
included files into this directory structure:
```
./
 | - src
      | - lib.rs
      | - hello.c
      | test
         | - data.rs
 | - Cargo.toml
 | - build.rs
```

and then you can run it with `cargo test`
if you want to see performance information, id reccomend using these commands:

```
cargo test --release -- --show-output
```
or if you're on x86_64 and want to see how it works with the cpu features,

```
RUSTFLAGS='-C target_feature=+avx,+fma' cargo test --release -- --show-output
```