diff --git a/spec/afterStart.test.ts b/spec/afterStart.test.ts
index 1c15039..5023465 100644
--- a/spec/afterStart.test.ts
+++ b/spec/afterStart.test.ts
@@ -5,6 +5,7 @@ const android = new Android({ debug: true });
 
 let emulatorId = '';
 beforeAll(async () => {
+  console.log('start', new Date().toUTCString());
   const avds = await android.listAVDs();
   let avdName = '';
   if (avds.length === 0) {
@@ -13,7 +14,6 @@ beforeAll(async () => {
   } else {
     avdName = avds[0].Name;
   }
-  console.log('start', new Date().toUTCString());
   const res = await android.start({
     avd: avdName,
     noaudio: true,
@@ -29,6 +29,7 @@ beforeAll(async () => {
   } else {
     throw Error('no emulator');
   }
+  console.log('start-end', new Date().toUTCString());
 }, 1200000);
 
 afterAll(async () => {
diff --git a/src/util.ts b/src/util.ts
index 3df1535..7a24f86 100644
--- a/src/util.ts
+++ b/src/util.ts
@@ -76,6 +76,7 @@ export function spawnWaitFor(command: string, regex: RegExp, timeout = 600000) {
     const { cmd, args } = transformCommand(command);
     const proc = spawn(cmd, args, { stdio: ['ignore', 'pipe', 'ignore'] });
     const clock = setTimeout(() => {
+      console.log('clock timeout');
       proc.kill();
       reject(Error('Execution timeout'));
     }, timeout);
@@ -84,6 +85,7 @@ export function spawnWaitFor(command: string, regex: RegExp, timeout = 600000) {
     proc.stdout.on('data', (data: string) => {
       output += data;
       const matches = data.match(regex);
+      console.log('matches', matches, data);
       if (matches) {
         clearTimeout(clock);
         resolve({
@@ -95,7 +97,6 @@ export function spawnWaitFor(command: string, regex: RegExp, timeout = 600000) {
     });
     proc.on('close', (code, signal) => {
       console.log('code,signal', code, signal);
-      console.log('output', output);
 
       clearTimeout(clock);
       reject(Error(output));