From 7cddb91b054cf58a117e537c840d28b4ef08f89d Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Wed, 23 Jul 2014 09:35:22 -0700
Subject: [PATCH] Print unknown errors with --verbose

---
 src/cargo/lib.rs | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/cargo/lib.rs b/src/cargo/lib.rs
index e7b7c4914..c595684c6 100644
--- a/src/cargo/lib.rs
+++ b/src/cargo/lib.rs
@@ -202,13 +202,16 @@ pub fn handle_error(err: CliError, shell: &mut MultiShell) {
         let _ = shell.error(error.to_string());
     }
 
-    if error.cause().is_some() {
+    if error.cause().is_some() || unknown {
         let _ = shell.concise(|shell| {
             shell.err().say("\nTo learn more, run the command again with --verbose.", BLACK)
         });
     }
 
     let _ = shell.verbose(|shell| {
+        if unknown {
+            let _ = shell.error(error.to_string());
+        }
         error.cause().map(|err| {
             let _ = handle_cause(err, shell);
         });
-- 
2.30.2