History of api 1 change

In crates/hub/tests/backups.rs, lines 773–796 on ea55fb62f9197f55862753612441467a6f1598cf418867be0fae48736ac803b8. 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 773,796:crates/hub/tests/backups.rs.