History of HubBackend::new 2 changes

In crates/hub/src/protocol.rs, lines 36–38 on 64caed18236aa8e4c69436394351041c78d2c4c01772a061ae74562a2605c507. 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 36,38:crates/hub/src/protocol.rs.