rustc

The Rust compiler. Rust projects usually use cargo instead of invoking rustc directly. More information: https://doc.rust-lang.org/rustc.

• Compile a binary crate:

rustc path/to/main.rs

• Compile with optimizations (s means optimize for binary size; z is the same with even more optimizations):

rustc -C lto -C opt-level=0|1|2|3|s|z path/to/main.rs

• Compile with debugging information:

rustc -g path/to/main.rs

• Explain an error message:

rustc --explain error_code

• Compile with architecture-specific optimizations for the current CPU:

rustc -C target-cpu=native path/to/main.rs

• Display the target list (Note: you have to add a target using rustup first to be able to compile for it):

rustc --print target-list

• Compile for a specific target:

rustc --target target_triple path/to/main.rs