Support untyped warnings from crates.io with successful publish

Author: carols10cents

src/cargo/ops/registry.rs

@@ -276,6 +276,12 @@ fn transmit(
                 config.shell().warn(&msg)?;
             }
 
+            if !warnings.other.is_empty() {
+                for msg in warnings.other {
+                    config.shell().warn(&msg)?;
+                }
+            }
+
             Ok(())
         }
         Err(e) => Err(e),

src/crates-io/lib.rs

@@ -86,6 +86,7 @@ pub struct User {
 pub struct Warnings {
     pub invalid_categories: Vec<String>,
     pub invalid_badges: Vec<String>,
+    pub other: Vec<String>,
 }
 
 #[derive(Deserialize)]
@@ -223,9 +224,17 @@ impl Registry {
             .map(|x| x.iter().flat_map(|j| j.as_str()).map(Into::into).collect())
             .unwrap_or_else(Vec::new);
 
+        let other: Vec<String> = response
+            .get("warnings")
+            .and_then(|j| j.get("other"))
+            .and_then(|j| j.as_array())
+            .map(|x| x.iter().flat_map(|j| j.as_str()).map(Into::into).collect())
+            .unwrap_or_else(Vec::new);
+
         Ok(Warnings {
             invalid_categories,
             invalid_badges,
+            other,
         })
     }