assets precompile error

gistfile1.txt

RAILS_ENV=staging bundle exec rake 'assets:precompile'
WARNING: Use strings for Figaro configuration. 647730745310662 was converted to "647730745310662".
WARNING: Use strings for Figaro configuration. 22225 was converted to "22225".
/Users/cedric/.rvm/rubies/ruby-2.0.0-p451/bin/ruby /Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/bin/rake assets:precompile:all RAILS_ENV=staging RAILS_GROUPS=assets
WARNING: Use strings for Figaro configuration. 647730745310662 was converted to "647730745310662".
WARNING: Use strings for Figaro configuration. 22225 was converted to "22225".
AssetSync: using /Users/cedric/Code/apptweak/config/initializers/asset_sync.rb
AssetSync: Syncing.
rake aborted!
Excon::Errors::SocketError: XML declaration allowed only at the start of the document (Nokogiri::XML::SyntaxError)
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/nokogiri-1.6.3.1/lib/nokogiri/xml/sax/push_parser.rb:47:in `native_write'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/nokogiri-1.6.3.1/lib/nokogiri/xml/sax/push_parser.rb:47:in `write'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-xml-0.1.2/lib/fog/xml/sax_parser_connection.rb:31:in `block in request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/response.rb:105:in `call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/response.rb:105:in `parse'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/response_parser.rb:6:in `response_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:372:in `response'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:236:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/idempotent.rb:26:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/base.rb:10:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/base.rb:10:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:256:in `rescue in request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:204:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/idempotent.rb:26:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/base.rb:10:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/base.rb:10:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:256:in `rescue in request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:204:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/idempotent.rb:26:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/base.rb:10:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/middlewares/base.rb:10:in `error_call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:256:in `rescue in request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/excon-0.45.4/lib/excon/connection.rb:204:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-xml-0.1.2/lib/fog/xml/sax_parser_connection.rb:35:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-xml-0.1.2/lib/fog/xml/connection.rb:7:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-aws-0.7.4/lib/fog/aws/storage.rb:592:in `_request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-aws-0.7.4/lib/fog/aws/storage.rb:587:in `request'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-aws-0.7.4/lib/fog/aws/requests/storage/get_bucket.rb:43:in `get_bucket'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/fog-aws-0.7.4/lib/fog/aws/models/storage/directories.rb:21:in `get'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/storage.rb:20:in `bucket'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/storage.rb:99:in `get_remote_files'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/storage.rb:211:in `upload_files'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/storage.rb:233:in `sync'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/asset_sync.rb:29:in `block in sync'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/asset_sync.rb:51:in `call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/asset_sync.rb:51:in `with_config'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/asset_sync/asset_sync.rb:28:in `sync'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/tasks/asset_sync.rake:5:in `block (2 levels) in <top (required)>'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/asset_sync-1.1.0/lib/tasks/asset_sync.rake:20:in `block in <top (required)>'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/turbo-sprockets-rails3-0.3.14/lib/turbo-sprockets/tasks/assets.rake:120:in `call'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/turbo-sprockets-rails3-0.3.14/lib/turbo-sprockets/tasks/assets.rake:120:in `each'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/turbo-sprockets-rails3-0.3.14/lib/turbo-sprockets/tasks/assets.rake:120:in `block (3 levels) in <top (required)>'
Tasks: TOP => assets:sync
(See full trace by running task with --trace)
rake aborted!
Command failed with status (1): [/Users/cedric/.rvm/rubies/ruby-2.0.0-p451/...]
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/actionpack-3.2.18/lib/sprockets/assets.rake:12:in `ruby_rake_task'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/actionpack-3.2.18/lib/sprockets/assets.rake:21:in `invoke_or_reboot_rake_task'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/gems/actionpack-3.2.18/lib/sprockets/assets.rake:29:in `block (2 levels) in <top (required)>'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/bin/ruby_executable_hooks:15:in `eval'
/Users/cedric/.rvm/gems/ruby-2.0.0-p451@apptweak/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => assets:precompile
(See full trace by running task with --trace)
(Backtrace restricted to imported tasks)
cap aborted!
Command failed with status (1): [RAILS_ENV=staging bundle exec rake 'assets...]
/Users/cedric/Code/apptweak/lib/capistrano/tasks/deploy.rake:25:in `block (2 levels) in <top (required)>'
Tasks: TOP => assets:precompile
(See full trace by running task with --trace)
The deploy has failed with an error: Command failed with status (1): [RAILS_ENV=staging bundle exec rake 'assets...]