diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index cb9b50d..50b14e9 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -43,31 +43,35 @@ jobs:
       - name: 安装依赖
         run: npm ci
 
-      # 下载完整日志需要仓库管理员权限，失败详情转成注解才能在提交页直接看到
+      # 下载完整日志需要仓库管理员权限。失败详情转成注解，这样没有管理员权限
+      # 的人也能在提交页直接看到是哪条断言挂了，不必去翻日志。
       - name: 单元测试
         shell: bash
         run: |
-          set -o pipefail
-          npm test 2>&1 | tee /tmp/unit.log && exit 0
-          echo "::error title=单元测试失败::$(grep -A 15 '^not ok' /tmp/unit.log \
-            | head -150 | sed 's/%/%25/g; s/\r//g' | awk '{printf "%s%%0A", $0}')"
-          exit 1
+          npm test > /tmp/unit.log 2>&1 || {
+            echo "::error title=单元测试失败::$(tail -120 /tmp/unit.log \
+              | sed 's/%/%25/g; s/\r//g' | awk '{printf "%s%%0A", $0}')"
+            exit 1
+          }
+          tail -6 /tmp/unit.log
 
       # Electron 集成测试要开真实窗口，无头环境靠 xvfb 提供 X server
       - name: Electron 集成测试
         shell: bash
         run: |
-          set -o pipefail
-          sudo apt-get update
-          sudo apt-get install -y xvfb libnss3 libatk1.0-0t64 libatk-bridge2.0-0t64 libcups2t64 libgbm1 libasound2t64 libgtk-3-0t64
+          annotate() {
+            echo "::error title=$1::$(tail -80 "$2" | sed 's/%/%25/g; s/\r//g' | awk '{printf "%s%%0A", $0}')"
+            exit 1
+          }
+          sudo apt-get update > /tmp/apt.log 2>&1 || annotate "apt 更新失败" /tmp/apt.log
+          sudo apt-get install -y xvfb libnss3 libatk1.0-0t64 libatk-bridge2.0-0t64 \
+            libcups2t64 libgbm1 libasound2t64 libgtk-3-0t64 >> /tmp/apt.log 2>&1 \
+            || annotate "运行库安装失败" /tmp/apt.log
           for suite in startup download cover annotation reader-features library-notes ai-scope; do
             echo "::group::$suite"
-            if ! xvfb-run -a npx electron "src/_test/electron/$suite.integration.js" 2>&1 | tee "/tmp/$suite.log"; then
-              echo "::endgroup::"
-              echo "::error title=集成测试失败 $suite::$(grep -iE 'FAIL|Error|失败' "/tmp/$suite.log" \
-                | head -60 | sed 's/%/%25/g; s/\r//g' | awk '{printf "%s%%0A", $0}')"
-              exit 1
-            fi
+            xvfb-run -a npx electron "src/_test/electron/$suite.integration.js" \
+              > "/tmp/$suite.log" 2>&1 || { echo "::endgroup::"; annotate "集成测试失败 $suite" "/tmp/$suite.log"; }
+            tail -3 "/tmp/$suite.log"
             echo "::endgroup::"
           done