Disassemble example panics

[riptl]

At commit 2e6d571, the disassemble example is broken.

% cargo run --example disassemble
    Finished dev [unoptimized + debuginfo] target(s) in 0.04s
     Running `target/debug/examples/disassemble`
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: ElfError(InvalidEntrypoint)', examples/disassemble.rs:41:59
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace