bingame-rs: moved from its own repository

Makefile

@@ -16,7 +16,8 @@ all: exercism fun
 .PHONY: exercism
 exercism: exercism-test protein 
 
-fun: fun-test butt
+.PHONY: fun
+fun: fun-test butt bingame-rs
 
 .PHONY: build
 build:
@@ -26,6 +27,13 @@ build:
 clean:
 	rm -rf build
 
+.PHONY: bingame-rs
+bingame-rs: build/bingame
+build/bingame: fun/bingame-rs/src/main.rs
+	cd fun/bingame-rs \
+	&& cargo b -Z unstable-options --artifact-dir ../../build/ \
+	&& cargo clean
+
 .PHONY: butt
 butt: build/butt
 build/butt: build fun/butt.rs