fix: early RBE failure building Chromium (#656)

src/utils/reclient.js

@@ -110,6 +110,13 @@ function reclientEnv(config) {
     RBE_experimental_credentials_helper_args: 'print',
   };
 
+  // When building Chromium, don't fail early on local fallbacks
+  // as they are expected.
+  if (config.defaultTarget === 'chrome') {
+    reclientEnv.RBE_fail_early_min_action_count = 0;
+    reclientEnv.RBE_fail_early_min_fallback_ratio = 0;
+  }
+
   const result = childProcess.spawnSync(reclientHelperPath, ['flags'], {
     stdio: 'pipe',
   });