The Rustc Book What is rustc? Command-line arguments Lints Lint levels Lint Groups Lint listing Allowed-by-default lints Warn-by-default lints Deny-by-default lints Codegen options JSON Output Tests Platform Support Template for target-specific documentation aarch64-apple-ios-sim armv7-unknown-linux-uclibceabi armv7-unknown-linux-uclibceabihf aarch64-unknown-none-hermitkernel *-kmc-solid_* *-unknown-openbsd x86_64-unknown-none wasm64-unknown-unknown Target Tier Policy Targets Built-in Targets Custom Targets Known Issues Profile-guided Optimization Instrumentation-based Code Coverage Linker-plugin based LTO Exploit Mitigations Contributing to rustc