History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 386–404 on a7aa76ac52d71a6d221ff315025cbcb5076097311c84fa9ec54c5d455402760e. 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 386,404:crates/hub/src/protocol.rs.