diff --git a/pr/ef/prefixes-f b/pr/ef/prefixes-f
new file mode 100644
index 00000000000..20d9e292127
--- /dev/null
+++ b/pr/ef/prefixes-f
@@ -0,0 +1 @@
+{"name":"prefixes-f","vers":"0.1.0","deps":[{"name":"quote","req":"^1.0.36","features":[],"optional":false,"default_features":false,"target":null,"kind":"normal"},{"name":"syn","req":"^2.0.60","features":["proc-macro","parsing","printing"],"optional":false,"default_features":false,"target":null,"kind":"normal"}],"cksum":"a78a8ed1a7339e74965a72602a3caa2b13ad7864b2f6fc4ec52fe535e9c398c6","features":{},"yanked":false}