Consider rustc failure internal despite JSON formatting

diff --git a/src/cargo/core/compiler/mod.rs b/src/cargo/core/compiler/mod.rs
index 45b47234580681ae0f555abba282213abfb4fc0e..605f061f4e83f41c0b199e0bcf45c22de23e3a42 100644 (file)
--- a/src/cargo/core/compiler/mod.rs
+++ b/src/cargo/core/compiler/mod.rs
@@ -284,7 +284,7 @@ fn rustc<'a, 'cfg>(
                     }
                     Ok(())
                 },
-            ).chain_err(|| format!("Could not compile `{}`.", name))?;
+            ).map_err(Internal::new).chain_err(|| format!("Could not compile `{}`.", name))?;
         } else if build_plan {
             state.build_plan(buildkey, rustc.clone(), outputs.clone());
         } else {