diff --git a/.gitignore b/.gitignore
index 395280e2678..fb7c2361a3e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -363,3 +363,7 @@ src/Simulation/Native/osx/libSparseQuantumSimulator.dylib
 src/Simulation/Native/win10/Microsoft.Quantum.Experimental.Simulators.Runtime.dll
 src/Simulation/Native/linux/Microsoft.Quantum.Experimental.Simulators.Runtime.dll
 src/Simulation/Native/osx/Microsoft.Quantum.Experimental.Simulators.Runtime.dll
+
+# Temporary Rust files/dirs. 
+Cargo.lock
+target/