Merge branch 'feature/releaseV3' of https://github.com/LambdaTest/node-tunnel into feature/releaseV3

Author: Kanhaiya Lal Singh

.travis.yml

@@ -4,3 +4,4 @@ node_js:
   - "8"
   - "10"
   - "12"
+  - "14"

lib/tunnel.js

@@ -351,7 +351,7 @@ function runBinary_(self, retries, fnCallback) {
       // On exit if process is exit due to unable to start local Server then
       // Retry else log and exit
       self.proc.on('exit', function(code) {
-        if (code && code === 10) {
+        if (code && code === 3) {
           runBinary_(self, retries - 1, fnCallback);
         }
         console.log(`Tunnel successfully stopped`);
@@ -888,7 +888,11 @@ function retryTunnelName_(self, infoAPIPort, retries, fnCallback) {
         self.options,
         'Number of retries to to get tunnel name exceeded.'
       );
-      console.log('Number of retries to to get tunnel name exceeded.');
+      console.log(`
+      Failed to run tunnel binary may be due to
+      Tunnel server ts.lambdatest.com not reachable. Please run curl ts.lambdatest.com/health" to check
+                          OR
+      Tunnel Binary not compatible to the platform. Please delete .lambdatest  folder and run the test again. `);
       return fnCallback(null);
     }
   } catch (e) {