History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 169–187 on 1e23d0105921f536b1cf0483972849e0255efeb89b7f53656e36d2a8839ca14d. 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 169,187:crates/hub/src/protocol.rs.