History of announce 2 changes

In crates/hub/src/swarm.rs, lines 105–134 on eb2a3502601df383321d8ff35397c4b0debbd2672863f1b722fdb6a617b044c7. 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 105,134:crates/hub/src/swarm.rs.