Rust-like bindings to dtrace.
```rust
let pid = 1324;
let mut dt = dtrace::Dtrace::new().unwrap();
dt.setopt_c(c"strsize", c"4096").unwrap();
dt.setopt_c(c"bufsize", c"4m").unwrap();
dt.exec_program(&format!(
))
.unwrap();
dt.go().unwrap();
println!("waiting for exit...");