Booting WEBrick ... server:invalid option: --trace ???

I'm migrating an old Rails App to a new server, I think I've got most
of my issues worked out so far. But....

When I run script/server --trace in the app I get the following
output... and I have no clue what to do or even where to look... Any
guidance or assistance would be greatly appreciated.

script/server --trace
=> Booting WEBrick...
server: invalid option: --trace

Thanks in advance for any guidance/assistance.


script/server --help
Usage: server [options]
    -p, --port=port Runs Rails on the specified port.
                                     Default: 3000
    -b, --binding=ip Binds Rails to the specified ip.
    -c, --config=file Use custom rackup configuration
    -d, --daemon Make server run as a Daemon.
    -u, --debugger Enable ruby-debugging for the
    -e, --environment=name Specifies the environment to run
this server under (test/development/production).
                                     Default: development
    -P, --path=/path Runs Rails app mounted at a
specific path.
                                     Default: /

    -h, --help Show this help message.

I don't see --trace in there anywhere.

yup, definitely not there.. doh.

ok, so I ran script/server without the trace and I get this

=> Booting WEBrick...

and then it comes back to the command prompt. It doesn't start the
app....? I was trying to use trace to see why.

Is there any way to troubleshoot this?