Configuration

Rustup has a settings file in TOML format at ${RUSTUP_HOME}/settings.toml. The schema for this file is not part of the public interface for rustup - the rustup CLI should be used to query and set settings.

On Unix operating systems a fallback settings file is consulted for some settings. This fallback file is located at /etc/rustup/settings.toml and currently can define only default_toolchain.