Updated Rust Version from 1.71.1 to the latest 1.91.1

Author: edithturn

content/guides/rust/build-images.md

@@ -50,7 +50,7 @@ This utility will walk you through creating the following files with sensible de
 Let's get started!
 
 ? What application platform does your project use? Rust
-? What version of Rust do you want to use? 1.71.1
+? What version of Rust do you want to use? 1.91.1
 ? What port does your server listen on? 8000
 ```
 
@@ -81,7 +81,7 @@ The following Dockerfile is equivalent to the one generated by `docker init`, bu
 
 ```dockerfile {title=Dockerfile}
 # Make sure RUST_VERSION matches the Rust version
-ARG RUST_VERSION=1.71.1
+ARG RUST_VERSION=1.91.1
 ARG APP_NAME=docker-rust-hello
 
 ################################################################################
@@ -139,7 +139,7 @@ in the build stage and Alpine as the runtime image. For example:
 
 ```dockerfile {title=Dockerfile}
 # Make sure RUST_VERSION matches the Rust version
-ARG RUST_VERSION=1.71.1
+ARG RUST_VERSION=1.91.1
 ARG APP_NAME=docker-rust-hello
 
 ################################################################################