Ensure work/local exists during create-lists

src/crates/sources/registry.rs

@@ -20,6 +20,7 @@ impl List for RegistryList {
         let mut list = Vec::new();
         let mut counts = HashMap::new();
 
+        fs::create_dir_all(&*LOCAL_DIR)?;
         let index = Index::new(LOCAL_DIR.join("crates.io-index"));
         index.retrieve_or_update().to_failure()?;