Error in update_code.php on line 54

[rudenko-programmer]

• Deployer version: v7.0.0-beta.24
• Deployment OS: Ubuntu 20.04.3 LTS

deploy.php

namespace Deployer;
require 'recipe/common.php';
// Config
set('application', 'application');
set('repository', 'git@rep-1.github.com:name/rep-1.git');
set('git_tty', true);
set('branch', 'master');
set('keep_releases', 3);
set('ssh_multiplexing', false);

host('host IP')
         ->set('remote_user', 'user')
        ->set('deploy_path', 'deploy_path')
	->set('identity_file', '~/.ssh/deployerkey')
	->set('config_file', '~/.ssh/config')
	->set('stage', 'production') 
	->set('forward_agent', true);

task('deploy', [
	'deploy:prepare',
	'deploy:publish'
]);
after('deploy:failed', 'deploy:unlock');

~/.ssh/config

Host rep-1.github.com
        Hostname github.com
        User git
        IdentityFile=~/.ssh/rep1
        IdentitiesOnly yes

Host rep-2.github.com
        Hostname github.com
        User git
        IdentityFile=~/.ssh/rep-2
        IdentitiesOnly yes

Line with error

54: run("ssh-keyscan -H $repositoryHostname >> ~/.ssh/known_hosts");

I get error update_code.php on line 54 when I try to realize Using multiple repositories on one server with GitHub

I solve this problem when I commented line 54 in source code but this is not a good idea as for me.

Maybe we can add additional params to config file if we need to solve this problem or maybe somthing else. At the moment unfortunately I don't have good idea.