Eport.finish not being called:

[g00dnatur3]

Raspberry Pi 3
Node 7.7.2

const profiler = require('v8-profiler');
var counter = 0;

setInterval(function() {
	
	const snapshot = profiler.takeSnapshot();

	console.log('exporting snapshot')
	
	snapshot.export(function(error, result) {
		if (err) throw err;
		
		console.log('NEVER GET HERE')
		
		const ws = fs.createWriteStream('snapshot_' + (counter++) + '.json');
		fs.end(result);
        snapshot.delete();
	});
}, 10000);