fix: set toolchain

install.bash

@@ -100,9 +100,10 @@ install-rust() {
 		if [[ -z "$(ls "${RUSTUP_HOME}/toolchains" >/dev/null)" ]]; then
 			log "info" "No toolchain found, installing a ${GREEN}Rust${RESET_BOLD} toolchain"
 			log "info" "Setting ${GREEN}Rust${RESET_BOLD}'s toolchain to ${GREEN}stable${RESET_BOLD}"
-			(
-				printf "%s" "${install_path}/cargo/bin/rustup default stable" | zsh
-			)
+			if ! rustup default stable; then
+				log "error" "Failed to set a ${GREEN}Rust${RESET_BOLD} toolchain"
+				return 1
+			fi
 		else
 			log "info" "${GREEN}Rust${RESET_BOLD} toolchain found, skipping toolchain setup"
 		fi