History of Tracker::addr 1 change

In crates/hub/src/swarm.rs, lines 60–63 on 2a0c09c097168374c2744f61ae27875085372b77ea0d698de042d7777000cdc2. 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 60,63:crates/hub/src/swarm.rs.