Add problem matchers for panic and test failure

.matchers/rust.json

@@ -1,7 +1,7 @@
 {
     "problemMatcher": [
         {
-            "owner": "rust",
+            "owner": "rust-diagnostic",
             "pattern": [
                 {
                     "regexp": "^(warning|warn|error)(\\[(.*)\\])?: (.*)$",
@@ -16,6 +16,24 @@
                     "column": 4
                 }
             ]
+        },
+        {
+            "owner": "rust-panic",
+            "pattern": [
+                {
+                    "regexp": "^(thread '[^']+' panicked at '[^']+'?)",
+                    "message": 1
+                }
+            ]
+        },
+        {
+            "owner": "rust-test-failure",
+            "pattern": [
+                {
+                    "regexp": "^(test \\w+ ... FAILED)",
+                    "message": 1
+                }
+            ]
         }
     ]
 }