.env 上传后无软链接、用户为 root 问题

我是按照教程来的，先在homestead虚拟机~/deploy-laravel-shop/内运行scp root@ip_addr:/var/www/laravel-shop/.env .，

然后编辑 deploy.php：

<?php
namespace Deployer;

require 'recipe/laravel.php';

// Project repository
set('repository', 'https://github.com/captainwong/shop.git');

// Shared files/dirs between deploys
add('shared_files', []);
add('shared_dirs', []);

// Writable dirs by web server
set('writable_dirs', []);

// Hosts

host('ip_addr')
    ->user('root')
    ->identityFile('~/.ssh/laravel-shop-aliyun.pem')
    ->become('www-data')
    ->set('deploy_path', '/var/www/laravel-shop-deployer');

// Tasks
desc('Upload .env file');
task('env:upload', function() {
    upload('.env', '{{release_path}}/.env');
});
after('deploy:shared', 'env:upload');

// [Optional] if deploy fails automatically unlock.
after('deploy:failed', 'deploy:unlock');

// Migrate database before symlink new release.
before('deploy:symlink', 'artisan:migrate');

执行dep deploy也成功了，阿里云那边看/var/www/laravel-shop-deployer/shared，也有了.env文件，用户是www-data：

*嗯，这里有异常，.env文件大小是0

但是current内的.env文件永远是属于root的，删除后重新执行dep deploy也一样，都到了releases/4了：

怎么破啊