diff --git a/crates/boxfnonce/RUSTSEC-0000-0000.md b/crates/boxfnonce/RUSTSEC-0000-0000.md
new file mode 100644
index 00000000..b45e566d
--- /dev/null
+++ b/crates/boxfnonce/RUSTSEC-0000-0000.md
@@ -0,0 +1,17 @@
+```toml
+[advisory]
+id = "RUSTSEC-0000-0000"
+package = "boxfnonce"
+date = "2019-06-20"
+url = "https://github.com/stbuehler/rust-boxfnonce/commit/058ac7e1a7d732076da9d8a37baa66bcb67758d8"
+informational = "unmaintained"
+
+[versions]
+patched = []
+```
+
+# `boxfnonce` obsolete with release of Rust 1.35.0
+
+[This](https://github.com/stbuehler/rust-boxfnonce/commit/058ac7e1a7d732076da9d8a37baa66bcb67758d8) commit marks the `boxfnonce` crate as obsolete and the GitHub repo has since been archived.
+
+The functionality of `boxfnonce` has been added to Rust since 1.35.0. Use `Box<dyn FnOnce(...) -> ...>`.