phantomjsで出るエラーだけ追うスクリプト ref: http://qiita.com/fnobi/items/fdcd302c487d1b277246

errortracker.js

var system = require('system');
var url = system.args[1];

if (!/^https?:\/\//.test(url)) {
    console.error('Pass a url!');
    phantom.exit();
}

phantom.onError = function(msg, trace) {
    var msgStack = ['PHANTOM ERROR: ' + msg];
    if (trace && trace.length) {
        msgStack.push('TRACE:');
        trace.forEach(function(t) {
            msgStack.push(' -> ' + (t.file || t.sourceURL) + ': ' + t.line + (t.function ? ' (in function ' + t.function + ')' : ''));
        });
    }
    console.error(msgStack.join('\n'));
    phantom.exit(1);
};

var page = require('webpage').create();
// page.viewportSize = { width: 320, height: 480 };
page.open(url, function (status) {
    if (status !== 'success') {
        console.error('Unable to access the network!');
        phantom.exit(1);
    }
    // phantom.exit();
});

file1.txt

phantomjs errortracker.js http://fnobi.com/