Choose the global channel to use by default.
Section: Toolchain selection
Set the default toolchain
bash
bash
rustup default stableExplanation
Useful when a machine accidentally defaults to nightly or an older channel.
Learn the surrounding workflow
Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.
Related commands
Same sheet · prioritizing Toolchain selection
Show active toolchain details
Display installed toolchains and the active default.
Run Cargo with a specific toolchain
Use a channel explicitly for one command.
Pin a directory to one toolchain
Set a local override for the current project.
See which rustc binary is used
Show the actual executable path selected by rustup.
List installed and available components
See whether rustfmt, clippy, or docs are installed.