[Bug]: The missing runner binary leads to CREATING_CONTAINER_ERROR after clearing /tmp

[r4victor]

Steps to reproduce

1. Create an SSH fleet.
2. Clear /tmp on the fleet instance.
3. See runs fail with CREATING_CONTAINER_ERROR:

[11:49:54] WARNING  dstack._internal.server.background.tasks.process_running_jobs
                    :475 shim failed to execute job massive-pug-1-1-0:           
                    CREATING_CONTAINER_ERROR (createContainer error: Error       
                    response from daemon: invalid mount config for type "bind":  
                    bind source path does not exist:                             
                    /tmp/dstack-runner1354965780)

This is caused by the fact that the shim downloads the runner binary into /tmp at startup and then mounts the runner into the container. If the /tmp is cleared after the runner is downloaded, then mounting fails.

Actual behaviour

No response

Expected behaviour

No response

dstack version

master

Server logs

No response

Additional information

No response