History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 349–367 on 6dbd999ad794df9d95fd17ad3b8357b64e6b0c3d29087d82f8d505f120e08282. 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 349,367:crates/hub/src/protocol.rs.