RUSTSEC-2019-0032 crust repo has been archived; use libp2p instead

The crust crate repo was archived with no warning or explanation. Given that it was archived with no warning or successor, there's not an official replacement but rust-libp2p looks like it's got a similar feature set and is actively maintained...

crust repo has been archived; use libp2p instead

The crust crate repo was archived with no warning or explanation. Given that it was archived with no warning or successor, there's not an official replacement but rust-libp2p looks like it's got a similar feature set and is actively maintained...