Make crates.io compatible with whatsdeployed.io

Author: notriddle

src/controllers/site_metadata.rs

@@ -9,8 +9,12 @@ pub fn show_deployed_sha(req: &mut dyn Request) -> CargoResult<Response> {
         ::std::env::var("HEROKU_SLUG_COMMIT").unwrap_or_else(|_| String::from("unknown"));
 
     #[derive(Serialize)]
-    struct R {
-        deployed_sha: String,
+    struct R<'a> {
+        deployed_sha: &'a str,
+        commit: &'a str,
     }
-    Ok(req.json(&R { deployed_sha }))
+    Ok(req.json(&R {
+        deployed_sha: &deployed_sha[..],
+        commit: &deployed_sha[..],
+    }))
 }