Flink CLI end-to-end test timeout on azure

Dec 14 02:14:48 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:16:59 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:19:10 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:21:21 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:23:32 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:25:43 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:27:54 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:30:05 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:32:16 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:34:27 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:36:38 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:38:49 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:41:01 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:43:12 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:45:23 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:47:34 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:49:45 Waiting for Dispatcher REST endpoint to come up...
Dec 14 02:49:46 Dispatcher REST endpoint has not started within a timeout of 30 sec
Dec 14 02:49:46 [FAIL] Test script contains errors.
Dec 14 02:49:46 Checking for errors...
Dec 14 02:49:46 No errors in log files.
Dec 14 02:49:46 Checking for exceptions...
Dec 14 02:49:46 No exceptions in log files.
Dec 14 02:49:46 Checking for non-empty .out files...
Dec 14 02:49:46 No non-empty .out files.
Dec 14 02:49:46 
Dec 14 02:49:46 [FAIL] 'Flink CLI end-to-end test' failed after 65 minutes and 35 seconds! Test exited with exit code 1
Dec 14 02:49:46 
02:49:46 ##[group]Environment Information
Dec 14 02:49:46 Searching for .dump, .dumpstream and related files in '/home/vsts/work/1/s'
dmesg: read kernel buffer failed: Operation not permitted
Dec 14 02:49:48 Stopping taskexecutor daemon (pid: 93858) on host fv-az231-497.
Dec 14 02:49:49 Stopping standalonesession daemon (pid: 93605) on host fv-az231-497.
The STDIO streams did not close within 10 seconds of the exit event from process '/usr/bin/bash'. This may indicate a child process inherited the STDIO streams and has not yet exited.
##[error]Bash exited with code '1'.