History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 238–256 on 484527d5ba1bdec58bc21d3f68d1d3c9ffd39f31f25daa501e275acbb6019d94. 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 238,256:crates/hub/src/protocol.rs.