History of HubBackend::new 2 changes

In crates/hub/src/protocol.rs, lines 42–44 on d8b86dc23809450e5fe26e0c3f96efcfc9c8f80285b500fea1f3098e70e08fcf. 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 42,44:crates/hub/src/protocol.rs.