History of build 6 changes

In crates/hub/src/lib.rs, lines 46–70 on d94449e42718409b41ab98335c6641b2b4429332e8a1cab535e76467509986b4. 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 46,70:crates/hub/src/lib.rs.