History of HubBackend::new 3 changes

In crates/hub/src/protocol.rs, lines 44–52 on 4cc40ccc603474d774ca8dd90027e1728740d3c64a3d352e02bdb7e0c03e6e68. 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.