SERVER-67119 added an API to create and drop indexes registered in the sharding catalog. It was meant to be a first step before having a proper coordinator which will be implemented by PM-2852.

As part of the API, in order to ensure that migrations are always resumed, sharding_ddl_util::resumeMigrations is called in an ON_BLOCK_EXIT. Considering that if there is a stepdown in the config server when trying to resume migrations, the function might throw in that scenario, this might lead to a crash in the server because the scope guard destructor is declared as noexcept.