History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 352–370 on c8df33a6829f7e74495229ca4180b81b6b478b21decac8b2ee965ba5936cbb71. 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 352,370:crates/hub/src/protocol.rs.