Many tests failed at the same time in this package.

• I will close this issue when there are no more failures in this package and
  there is at least one pass.
• No new issues will be filed for this package until this issue is closed.
• If there are already issues for individual test cases, I will close them when
  the corresponding test passes. You can close them earlier, if you prefer, and
  I won't reopen them while this issue is still open.

Here are the tests that failed:

• test_create_backup (samples.samples.backup_sample_test: test_create_backup failed #320)
• test_create_backup_with_encryption_key (samples.samples.backup_sample_test: test_create_backup_with_encryption_key failed #408)
• test_restore_database (samples.samples.backup_sample_test: test_restore_database failed #321)
• test_restore_database_with_encryption_key (samples.samples.backup_sample_test: test_restore_database_with_encryption_key failed #410)
• test_list_backup_operations (samples.samples.backup_sample_test: test_list_backup_operations failed #266)
• test_list_backups (samples.samples.backup_sample_test: test_list_backups failed #322)
• test_update_backup (samples.samples.backup_sample_test: test_update_backup failed #268)
• test_delete_backup (samples.samples.backup_sample_test: test_delete_backup failed #269)
• test_cancel_backup (samples.samples.backup_sample_test: test_cancel_backup failed #270)
• test_create_database_with_retention_period (samples.samples.backup_sample_test: test_create_database_with_retention_period failed #271)

commit: 2487800
buildURL: Build Status, Sponge
status: failed