History of router 3 changes

In crates/oxy-server/src/lib.rs, lines 182–194 on 7b9809e67c3d5b6272bc211863db5c7853535b8f95b41afdc5bccab86e6e3715. 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 182,194:crates/oxy-server/src/lib.rs.