chore: checkpoint before Python removal

vendor/scrypt/benches/lib.rs

@@ -0,0 +1,18 @@
+#![no_std]
+#![feature(test)]
+
+extern crate test;
+
+use test::Bencher;
+
+#[bench]
+pub fn scrypt_15_8_1(bh: &mut Bencher) {
+    let password = b"my secure password";
+    let salt = b"salty salt";
+    let mut buf = [0u8; 32];
+    let params = scrypt::Params::recommended();
+    bh.iter(|| {
+        scrypt::scrypt(password, salt, &params, &mut buf).unwrap();
+        test::black_box(&buf);
+    });
+}