{"ast_node_type":"other","tokens":[{"end":87,"kind":"keyword","start":0,"text":"///"}]}
    ///    It seems that this is a reasonable place to try for cargo, rustc, and rustup
    ///    example: for cargo, this tries $CARGO_HOME/bin/cargo, or ~/.cargo/bin/cargo if $CARGO_HOME is unset.
    /// 2) Appropriate environment variable (erroring if this is set but not a usable executable)