seems to quit immediately (OS X)

[scottschafer]

I have my config.json set up like this:
{
"paths": [{
"src": "~/GITHEAD/cis/healthline/hl-datasolution/src/main/webapp/",
"dst": "/prod/tomcat7/webapps/ROOT"
}],
"once": false,
"recursive": true,
"args": [
"-a"
]
}

And I'm running it like:
nsyncer start ./config.json

But it doesn't seem to watch the folder. I've tried it leaving out "once" and forcing it to be false, but it doesn't make a difference. Here's my console output. Thanks.

[job 1] rsync -a -rt ~/GITHEAD/cis/healthline/hl-datasolution/src/main/webapp/ /prod/tomcat7/webapps/ROOT
nsyncer: sync complete