History of HubBackend::new 3 changes

In crates/hub/src/protocol.rs, lines 44–52 on f4d6ef418a96aef348f721e3a7eaede7f21a77e79dc0c0c9681edf895e219864. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 44,52:crates/hub/src/protocol.rs.