build(Makefile): fix oopsie

Makefile

@@ -241,8 +241,9 @@ db: --image-build --containerized---db;
 # --containerized-%-memcached: --image-build
 # 	$(MAKE) -- --image-run-$*-memcached
 --containerized---start-memcached:
-	./utils/watchcontainerrun.sh "$(CONTAINER_COMMAND)" "$(CONTAINER_FILE)" &
-	CONTAINER_ID=`$(CONTAINER_BGRUN) $(MEMCACHED_IMAGE)` ; \
+	MEMCACHED_PORT=`cat $(CONTAINER_FILE) | grep 'MEMCACHED_PORT=' | sed 's/MEMCACHED_PORT=//'`; \
+	./utils/watchcontainerrun.sh "$(CONTAINER_COMMAND)" "$(CONTAINER_FILE)" & \
+	CONTAINER_ID=`$(CONTAINER_BGRUN) $(MEMCACHED_IMAGE) --port=$${MEMCACHED_PORT}` ; \
 	echo "CONTAINER_ID=$${CONTAINER_ID}" >> $(CONTAINER_FILE)
 
 --containerized-%-database: FRADRIVE_SERVICE=database
@@ -332,7 +333,7 @@ start-%: --develop
 	echo "DEV $(DEVELOP)"
 	if [[ "$(SINGLETON)" = "true" ]]; then \
 	  CONTAINER_FILE=$(DEVELOP)/$* ; \
-	  if ! [[ -e $${CONTAINER_FILE} ]]; then \
+	  if [[ -e $${CONTAINER_FILE} ]]; then \
 	    >&2 echo "Another $* service is already running! Use \"make new-develop\" or \"make start\" to start a new develop instance despite currently running services." ; \
 		exit 1 ; \
 	  fi \