We can add this back now (should fix CI)

scripts/rollup/stats.js

@@ -41,6 +41,30 @@ function printResults() {
       chalk.gray.yellow('Diff'),
     ],
   });
+  currentBuildResults.bundleSizes.forEach(index => {
+    const result = currentBuildResults.bundleSizes[index];
+    const prev = prevBuildResults.bundleSizes.filter(
+      res => res.filename === result.filename
+    )[0];
+    if (result === prev) {
+      // We didn't rebuild this bundle.
+      return;
+    }
+
+    const size = result.size;
+    const gzip = result.gzip;
+    let prevSize = prev ? prev.size : 0;
+    let prevGzip = prev ? prev.gzip : 0;
+    table.push([
+      chalk.white.bold(`${result.filename} (${result.bundleType}`),
+      chalk.gray.bold(filesize(prevSize)),
+      chalk.white.bold(filesize(size)),
+      percentChange(prevSize, size),
+      chalk.gray.bold(filesize(prevGzip)),
+      chalk.white.bold(filesize(gzip)),
+      percentChange(prevGzip, gzip),
+    ]);
+  });
   return table.toString();
 }