History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 252–270 on b6b7e4cf6b24ea46b05b4e7672182b94d7aa0fd9c1785068bc36f7ae5c594662. 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 252,270:crates/hub/src/protocol.rs.