Task runs without failing or uploading anything about grunt-s3 HOT 4 OPEN

s3: {
    options: {
        key: config.s3.accessKeyId, // we load these as variables on top
        secret: config.s3.secretAccessKey,
        bucket: 'REDACTED',
        access: 'public-read',
        headers: {
            // One year cache policy in milliseconds
            "Cache-Control": "max-age=" + (1000 * 60 * 60 * 24 * 365) + ", public",
            "Expires": new Date(Date.now() + (1000 * 60 * 60 * 24 * 365)).toUTCString()
        }
    },
    sync: [
    {
        options: {
            verify: true, // Make sure the local files are newer than the ones in s3 and replace
            gzip: true,
            debug: true
        },
        src: [
            "<%= yeoman.tmp %>/{,*/}*"
        ],
        dest: [""],
        // make sure the wildcard paths are fully expanded in the dest
        rel: [
            "<%= yeoman.tmp %>/"
        ]
    }
    ]
},