History of build 6 changes

In crates/hub/src/lib.rs, lines 46–70 on d7ce41acf22c43e8dcd97c5a8f598e720a9ec655796fce64c88fd0b8a658862a. 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.