diff --git a/dy/nc/dyncast-impl b/dy/nc/dyncast-impl
new file mode 100644
index 00000000000..727cacd49a7
--- /dev/null
+++ b/dy/nc/dyncast-impl
@@ -0,0 +1 @@
+{"name":"dyncast-impl","vers":"0.1.0","deps":[{"name":"proc-macro2","req":"^1.0.79","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"quote","req":"^1.0","features":[],"optional":false,"default_features":true,"target":null,"kind":"normal"},{"name":"syn","req":"^2.0","features":["full"],"optional":false,"default_features":true,"target":null,"kind":"normal"}],"cksum":"d6b3fe648823433137ab2170688265ee5d098bb79f9b656516e8db08db1a561e","features":{},"yanked":false,"rust_version":"1.74"}