From bc258791eb4cc5802c261afc2b923b2875c0736d Mon Sep 17 00:00:00 2001
From: Shantanu Raj <s@sraj.me>
Date: Fri, 5 Aug 2016 17:14:47 +0530
Subject: [PATCH] Update E0207 to use struct_span_err, add span_label

---
 src/librustc_typeck/collect.rs | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/librustc_typeck/collect.rs b/src/librustc_typeck/collect.rs
index 4486748a1f0..dfffe3a4a90 100644
--- a/src/librustc_typeck/collect.rs
+++ b/src/librustc_typeck/collect.rs
@@ -2314,8 +2314,12 @@ fn report_unused_parameter(ccx: &CrateCtxt,
                            kind: &str,
                            name: &str)
 {
-    span_err!(ccx.tcx.sess, span, E0207,
-              "the {} parameter `{}` is not constrained by the \
-               impl trait, self type, or predicates",
-              kind, name);
+    struct_span_err!(
+        ccx.tcx.sess, span, E0207,
+        "the {} parameter `{}` is not constrained by the \
+        impl trait, self type, or predicates",
+        kind, name)
+        .span_label(span, &format!("unconstrained lifetime parameter"))
+        .emit();
+
 }