History of HubBackend::new 5 changes

In crates/hub/src/protocol.rs, lines 53–71 on 858eca0d03c490d07d01bfa9748d5cc5742c749d31ecbbf882ece33f2ae0fcc5. 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 53,71:crates/hub/src/protocol.rs.