Update Rust.gitignore to include rustc-ice files

Add pattern to ignore Rust compiler crash reports

Rust.gitignore

@@ -19,3 +19,8 @@ target
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+# These are crash reports automatically generated by the Rust compiler (rustc) when it 
+# encounters an internal compiler error (ICE) - essentially a bug in the compiler itself, 
+# not your code. The filename pattern is rustc-ice-<timestamp>-<pid>.txt.
+rustc-ice-*.txt