diff --git a/test.sh b/test.sh
index cfc1817..55ad108 100755
--- a/test.sh
+++ b/test.sh
@@ -8,9 +8,13 @@ YEAR=2020
 
 run_solution() {
 	if [ -d "$solution" ]; then
-		runfile=$solution/run.sh
-		[ -f "$runfile" ] || { echo "Error: $runfile not found" >&2; exit 1; }
-		"$runfile" "$input"
+		if [ -f "$solution/Cargo.toml" ]; then
+			cargo run --quiet --manifest-path "$solution/Cargo.toml" < "$input"
+		else
+			runfile=$solution/run.sh
+			[ -f "$runfile" ] || { echo "Error: $runfile not found" >&2; exit 1; }
+			"$runfile" "$input"
+		fi
 	else
 		case "$(basename "$solution")" in
 			*.hs)