add idempotent rust install check for safe installation in container

dev-setup/install_linux_prerequisites.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
-set -eo pipefail
+#set -eo pipefail
+set -ex
 
 if [ $(id -u) -eq 0 ]; then
     echo "Don't run this as root"
@@ -27,9 +28,14 @@ elif [ ! -z "$(command -v dnf)" ]; then
     sudo dnf groupinstall -y 'Development Tools'
 fi
 
-# Install Rust
-curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y -c clippy --profile default
-source "$HOME/.cargo/env"
+# Install Rust if not already installed
+if ! command -v rustc >/dev/null 2>&1; then
+    echo "Installing Rust..."
+    curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y -c clippy --profile default
+    source "$HOME/.cargo/env"
+else
+    echo "Rust is already installed"
+fi
 
 #ask if they want to install optional android sdk (and install if yes)
 while true; do