History of dispatch 2 changes

In crates/hub/src/protocol.rs, lines 254–272 on bf5101d394c0cae673a730f03a02d7e075a61b751a400c000c72073e4f00b30d. 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 254,272:crates/hub/src/protocol.rs.