History of build 4 changes

In crates/hub/src/lib.rs, lines 41–63 on 16cb2b3aa9479bdc9a3cdd2c322f8d437983321c67c655d8d4f4337ae05dcf60. 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 41,63:crates/hub/src/lib.rs.