Use @actions-rs/core for cargo/cross execution.

Add problem matcher for cargo output

dist/.matchers/rust.json

@@ -0,0 +1,21 @@
+{
+    "problemMatcher": [
+        {
+            "owner": "rust",
+            "pattern": [
+                {
+                    "regexp": "^(warning|warn|error)(\\[(.*)\\])?: (.*)$",
+                    "severity": 1,
+                    "message": 4,
+                    "code": 3
+                },
+                {
+                    "regexp": "^([\\s->=]*(.*):(\\d*):(\\d*)|.*)$",
+                    "file": 2,
+                    "line": 3,
+                    "column": 4
+                }
+            ]
+        }
+    ]
+}