History of HubBackend::new 3 changes

In crates/hub/src/protocol.rs, lines 44–52 on ea14c4ec5c3fcbba8505639ca2ce632f5b892a0396dd98b65bbf029b788e0bff. 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.