Restore fails with permission error

I am doing a test restore, which works fine up until it is restoring build artifacts. I get this output:

** Invoke gitlab:backup:artifacts:restore (first_time)
** Invoke environment 
** Execute gitlab:backup:artifacts:restore
Restoring artifacts ... 
rake aborted!
Errno::EACCES: Permission denied @ rb_file_s_rename - (/mnt/storage/artifacts, /mnt/storage/artifacts.1488397275)
/opt/gitlab/embedded/lib/ruby/2.3.0/fileutils.rb:528:in `rename'
/opt/gitlab/embedded/lib/ruby/2.3.0/fileutils.rb:528:in `block in mv'
/opt/gitlab/embedded/lib/ruby/2.3.0/fileutils.rb:1571:in `block in fu_each_src_dest'
/opt/gitlab/embedded/lib/ruby/2.3.0/fileutils.rb:1587:in `fu_each_src_dest0'
/opt/gitlab/embedded/lib/ruby/2.3.0/fileutils.rb:1569:in `fu_each_src_dest'
/opt/gitlab/embedded/lib/ruby/2.3.0/fileutils.rb:517:in `mv'
/opt/gitlab/embedded/service/gitlab-rails/lib/backup/files.rb:46:in `backup_existing_files_dir'
/opt/gitlab/embedded/service/gitlab-rails/lib/backup/files.rb:37:in `restore'
/opt/gitlab/embedded/service/gitlab-rails/lib/tasks/gitlab/backup.rake:159:in `block (4 levels) in <top (required)>'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:240:in `block in execute'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `each'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `execute'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/opt/gitlab/embedded/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:165:in `invoke'
/opt/gitlab/embedded/service/gitlab-rails/lib/tasks/gitlab/backup.rake:59:in `block (3 levels) in <top (required)>'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:240:in `block in execute'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `each'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:235:in `execute'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/opt/gitlab/embedded/lib/ruby/2.3.0/monitor.rb:214:in `mon_synchronize'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:172:in `invoke_with_call_chain'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/task.rb:165:in `invoke'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:150:in `invoke_task'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `each'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:106:in `block in top_level'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:115:in `run_with_threads'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:100:in `top_level'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:78:in `block in run'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:176:in `standard_exception_handling'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/lib/rake/application.rb:75:in `run'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/rake-10.5.0/bin/rake:33:in `<top (required)>'
/opt/gitlab/embedded/bin/rake:22:in `load'
/opt/gitlab/embedded/bin/rake:22:in `<top (required)>'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/cli/exec.rb:74:in `load'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/cli/exec.rb:74:in `kernel_load'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/cli/exec.rb:27:in `run'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/cli.rb:332:in `exec'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/vendor/thor/lib/thor/invocation.rb:126:in `invoke_command'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/vendor/thor/lib/thor.rb:359:in `dispatch'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/cli.rb:20:in `dispatch'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/vendor/thor/lib/thor/base.rb:440:in `start'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/cli.rb:11:in `start'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/exe/bundle:34:in `block in <top (required)>'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/lib/bundler/friendly_errors.rb:100:in `with_friendly_errors'
/opt/gitlab/embedded/lib/ruby/gems/2.3.0/gems/bundler-1.13.7/exe/bundle:26:in `<top (required)>'
/opt/gitlab/embedded/bin/bundle:22:in `load'
/opt/gitlab/embedded/bin/bundle:22:in `<main>'
Tasks: TOP => gitlab:backup:artifacts:restore

The permissions on /mnt look like this:

drwxr-xr-x. 3 root root 23 Mar 1 13:51 storage

The permissions on /mnt/storage look like this:

drwx------. 2 git git 6 Mar 1 13:51 artifacts

I logged in as the gitlab user and was unable to perform the rename operation. So I understand the immediate cause of why it’s failing, but I’m not sure why the permissions aren’t correct, nor why the GitLab installation, reconfigure or restore scripts did not set them correctly. Also, this kills the restore, so any subsequent actions (not sure what they are), do not run.

This is on a fresh server, but it has the same version of GitLab and Centos 7 installed as the server from which the backup was made.

The permissions on the original server for these directories are the same.