Issue #3214565 by Spokje, longwave, alexpott, Lendude: [random test failure]...

Issue #3214565 by Spokje, longwave, alexpott, Lendude: [random test failure] Random fail in BuildTestTest::testPortMany

(cherry picked from commit 2c709ec1)

core/tests/Drupal/BuildTests/Framework/BuildTestBase.php

@@ -426,13 +426,14 @@ protected function instantiateServer($port, $working_dir = NULL) {
       ->start();
     // Wait until the web server has started. It is started if the port is no
     // longer available.
-    for ($i = 0; $i < 1000; $i++) {
+    for ($i = 0; $i < 50; $i++) {
+      usleep(100000);
       if (!$this->checkPortIsAvailable($port)) {
         return $ps;
       }
-      usleep(1000);
     }
-    throw new \RuntimeException(sprintf("Unable to start the web server.\nERROR OUTPUT:\n%s", $ps->getErrorOutput()));
+
+    throw new \RuntimeException(sprintf("Unable to start the web server.\nCMD: %s \nCODE: %d\nSTATUS: %s\nOUTPUT:\n%s\n\nERROR OUTPUT:\n%s", $ps->getCommandLine(), $ps->getExitCode(), $ps->getStatus(), $ps->getOutput(), $ps->getErrorOutput()));
   }
 
   /**