Merge branch 'master' into fix/issue-549

apps/ai-game-creator-shell/scripts/run-rust-shell-test-shards.mjs

@@ -156,7 +156,8 @@ function resolveTestExecutable() {
       kind: options.targetKind,
       name: options.binName,
     });
-    cargoArguments.push('--no-run', '--message-format=json');
+    // 保留 stdout 的 artifact JSON，并由 Cargo 将编译诊断输出到继承的 stderr。
+    cargoArguments.push('--no-run', '--message-format=json-render-diagnostics');
     console.log(`[rust-shards] cargo ${cargoArguments.join(' ')}`);
 
     const child = spawn('cargo', cargoArguments, {

apps/ai-game-creator-shell/scripts/run-rust-shell-test-shards.test.mjs

@@ -62,6 +62,18 @@ fn failing_case() {
   assert.match(result.output, /1 passed; 1 failed/);
 });
 
+test('compile failure retains the diagnostic code, source location and cause', (t) => {
+  const result = runFixture(
+    t,
+    '#[test]\nfn compile_failure() { let _: u32 = "not a number"; }\n',
+  );
+  assert.equal(result.status, 1, result.output);
+  assert.match(result.output, /error\[E0308\]/);
+  assert.match(result.output, /src[\\/]lib\.rs:2:/);
+  assert.match(result.output, /mismatched types/);
+  assert.match(result.output, /expected `u32`, found `&str`/);
+});
+
 test('successful shard keeps its compact summary', (t) => {
   const result = runFixture(t, '#[test]\nfn passing_case() {}\n');
   assert.equal(result.status, 0, result.output);