[Libra Swarm] Display IO errors specifically rather than simply displaying the error type.
[Libra Swarm] Display IO errors specifically rather than simply displaying the error type.

Closes: #5953

aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core