When starting web_server without swat installed, it complains then reports this in the logs:
task_server_terminate: [websrv_task_init: failed to startup web server task]
ERROR: talloc_free with references at ../smbd/service_task.c:52
reference at ../smbd/service_stream.c:357
Created attachment 6197 [details]
That patch appears to have been mangled by something (the ends of the lines make no sense)
Created attachment 6199 [details]
The patch has been reviewed by Jelmer and is currently under autobuild. It should soon be landing in "master".
I'm marking it as FIXED.