History of router 1 change

In crates/hub/src/lib.rs, lines 74–76 on v0.3.1. 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 74,76:crates/hub/src/lib.rs.