diff --git a/rf/yl/rfyl b/rf/yl/rfyl
new file mode 100644
index 00000000000..1fedbad2368
--- /dev/null
+++ b/rf/yl/rfyl
@@ -0,0 +1 @@
+{"name":"rfyl","vers":"0.3.1","deps":[{"name":"rand","req":"^0.6","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null},{"name":"time","req":"^0.1","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal","registry":"https://github.com/rust-lang/crates.io-index","package":null}],"cksum":"6a5da641c86bbe2d3bf46af8b5775f060f4298b519e9050d58c7acb9cdf16d37","features":{},"yanked":false}