History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 230–248 on af9c6ca11c49bbc6b129307fcf16edfebac25f722fff4b5a8eb2636017b846c5. 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 230,248:crates/hub/src/protocol.rs.