Agent DRONE_TIMEOUT for stuck builds

Just wondering, if this parameter is still recognized by agent

Added - DRONE_TIMEOUT=10m to agent environment, got build that is always stuck (check config template hanging) for more than 10m, and still is not killed.
No new messages in console, docker ps shows it like this:

CONTAINER ID        IMAGE                                     COMMAND                  CREATED             STATUS                    PORTS                                                                      NAMES
3b893d2a5d6e        hashicorp/consul-template:0.19.4-alpine   "/bin/sh -c 'echo $C…"   19 minutes ago      Up 19 minutes                                                                                        0_1555278098931671417_step_4

And the logs:

$ docker logs -f 0_1555278098931671417_step_4

are showing frozen output, no new lines etc.

Could be terminal is somehow updated still… Or maybe this param should go to server env?