History of HubBackend::open 4 changes

In crates/hub/src/protocol.rs, lines 193–210 on 262ec9c51a5c37c68b17e6e78ad6c5583ee8f7a0b8debdc9d81b1454e878358f. 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 193,210:crates/hub/src/protocol.rs.