History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 426–444 on 559c392042340dc03180c163b407dd81c2f042df30441918b4254b482e7b3b64. 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 426,444:crates/hub/src/protocol.rs.