History of HubBackend::open 4 changes

In crates/hub/src/protocol.rs, lines 193–210 on 04f9c984439e1a49dbbbb32a47ebf0fab4279fe7a4cc03f2a798f5e620725c58. 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.