% rustup --version
rustup 1.25.1 (bb60b1e89 2022-07-12)
info: This is the version for the rustup toolchain manager, not the rustc compiler.
info: The currently active `rustc` version is `rustc 1.65.0 (897e37553 2022-11-02)`
% cargo --version
cargo 1.65.0 (4bc8f24d3 2022-10-20)
run wrong with
let out = b"Hello fellow Rustaceans!"; // now, type of out is '&[u8; 24]'
say(input: &str)
enviroments: macOs 13 Ventura
run wrong with
cargon run
get an error.