History of HubBackend::new 3 changes

In crates/hub/src/protocol.rs, lines 44–52 on 7edaff01d506aa28be6cf21f559e333e3281d48ef0d97b71774ae834184189d8. 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.