History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 298–316 on ac713df7b38be8185f1def38b082813f9ba0e41a436a2958698802fa3b8fcbba. 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 298,316:crates/hub/src/protocol.rs.