History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 233–251 on 1b770a1fecf00ba25f4dec05fffd399e8805234618e48ded335d64c955bb5374. 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 233,251:crates/hub/src/protocol.rs.