Data update

Task/Introspection/Rust/introspection-1.rust

@@ -0,0 +1,2 @@
+[dependencies]
+rustc_version = "0.4"

Task/Introspection/Rust/introspection-2.rust

@@ -0,0 +1,30 @@
+use rustc_version::{version_meta, Channel, version, Version};
+
+fn main() {
+    // We can check the Rust channel currently being used: stable, nightly, etc.
+    match version_meta().unwrap().channel {
+        Channel::Stable => {
+            println!("Rust Stable");
+        }
+        Channel::Beta => {
+            println!("Rust Beta");
+        }
+        Channel::Nightly => {
+            println!("Rust Nightly");
+        }
+        Channel::Dev => {
+            println!("Rust Dev");
+        }
+    }
+
+    // We can print the Rust compiler version
+    println!("{}",version().unwrap());
+
+    // We can check for a minimum Rust compiler version
+    if version().unwrap() >= Version::parse("1.50.0").unwrap() {
+        println!("Rust compiler version is ok.");
+    } else {
+        eprintln!("Rust compiler version is too old. Please update to a more recent version.");
+        std::process::exit(1);
+    }
+}