Spec failure in `spec/lib/gitlab/git/repository_spec.rb` | Gitlab::Git::Repository#merge can perform a merge

Job #946083432 failed for 6efb0e39:

Trace

Failures:
  1) Gitlab::Git::Repository#merge can perform a merge
     Failure/Error: FileUtils.rm_r(SEED_STORAGE_PATH)
     Errno::ENOTEMPTY:
       Directory not empty @ dir_s_rmdir - /builds/gitlab-org/gitlab/tmp/tests/repositories
     # ./spec/support/helpers/seed_helper.rb:19:in `ensure_seeds'
     # ./spec/lib/gitlab/git/repository_spec.rb:1749:in `block (3 levels) in <top (required)>'
     # ./spec/spec_helper.rb:354:in `block (3 levels) in <top (required)>'
     # ./spec/support/sidekiq_middleware.rb:9:in `with_sidekiq_server_middleware'
     # ./spec/spec_helper.rb:345:in `block (2 levels) in <top (required)>'
     # ./spec/spec_helper.rb:341:in `block (3 levels) in <top (required)>'
     # ./spec/spec_helper.rb:341:in `block (2 levels) in <top (required)>'