MC-5926: Conflict of simultaneous write in Redis cache

- add output to set command test failure

Author: cpartica

dev/tests/integration/testsuite/Magento/Deploy/Console/Command/SetModeCommandTest.php

@@ -146,7 +146,7 @@ private function enableAndAssertProductionMode()
         );
         $commandOutput = $this->commandTester->getDisplay();
 
-        $this->assertEquals(Cli::RETURN_SUCCESS, $this->commandTester->getStatusCode());
+        $this->assertEquals(Cli::RETURN_SUCCESS, $this->commandTester->getStatusCode(), $commandOutput);
 
         $this->assertContains('Deployment of static content complete', $commandOutput);
         $this->assertContains('Enabled production mode', $commandOutput);