History of HubBackend::new 3 changes

In crates/hub/src/protocol.rs, lines 44–52 on 0cd118748131b9e7e98a2c9b7b50df8ebcbda337097e6b2d61110408cc4d9b33. 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.