update failing E0621 tests

src/test/compile-fail/issue-13058.rs

@@ -22,7 +22,7 @@ impl<'r> Itble<'r, usize, Range<usize>> for (usize, usize) {
 fn check<'r, I: Iterator<Item=usize>, T: Itble<'r, usize, I>>(cont: &T) -> bool
 {
     let cont_iter = cont.iter();
-//~^ ERROR cannot infer an appropriate lifetime for autoref due to conflicting requirements
+//~^ ERROR 24:26: 24:30: explicit lifetime required in the type of `cont` [E0621]
     let result = cont_iter.fold(Some(0), |state, val| {
         state.map_or(None, |mask| {
             let bit = 1 << val;

src/test/compile-fail/issue-14285.rs

@@ -19,7 +19,7 @@ impl Foo for A {}
 struct B<'a>(&'a (Foo+'a));
 
 fn foo<'a>(a: &Foo) -> B<'a> {
-    B(a)    //~ ERROR cannot infer an appropriate lifetime
+    B(a)    //~ ERROR 22:5: 22:9: explicit lifetime required in the type of `a` [E0621]
 }
 
 fn main() {

src/test/compile-fail/issue-15034.rs

@@ -25,7 +25,7 @@ struct Parser<'a> {
 impl<'a> Parser<'a> {
     pub fn new(lexer: &'a mut Lexer) -> Parser<'a> {
         Parser { lexer: lexer }
-        //~^ ERROR cannot infer an appropriate lifetime
+        //~^ ERROR 27:25: 27:30: explicit lifetime required in the type of `lexer` [E0621]
     }
 }
 

src/test/compile-fail/issue-3154.rs

@@ -13,7 +13,7 @@ struct thing<'a, Q:'a> {
 }
 
 fn thing<'a,Q>(x: &Q) -> thing<'a,Q> {
-    thing{ x: x } //~ ERROR cannot infer
+    thing{ x: x } //~ ERROR 16:5: 16:18: explicit lifetime required in the type of `x` [E0621]
 }
 
 fn main() {

src/test/compile-fail/regions-glb-free-free.rs

@@ -22,7 +22,7 @@ mod argparse {
 
     impl<'a> Flag<'a> {
         pub fn set_desc(self, s: &str) -> Flag<'a> {
-            Flag { //~ ERROR cannot infer
+            Flag { //~ ERROR 25:13: 30:14: explicit lifetime required in the type of `s` [E0621]
                 name: self.name,
                 desc: s,
                 max_count: self.max_count,

src/test/compile-fail/variance-trait-matching.rs

@@ -31,7 +31,7 @@ fn get<'a, G>(get: &G) -> i32
     // This fails to type-check because, without variance, we can't
     // use `G : Get<&'a i32>` as evidence that `G : Get<&'b i32>`,
     // even if `'a : 'b`.
-    pick(get, &22) //~ ERROR cannot infer
+    pick(get, &22) //~ ERROR 34:5: 34:9: explicit lifetime required in the type of `get` [E0621]
 }
 
 fn pick<'b, G>(get: &'b G, if_odd: &'b i32) -> i32