History of schemas 4 changes

In crates/hub-api/src/lib.rs, lines 635–687 on 8fb35df7d66e37092d69de0770eb9aa983db52b4d43c5826641c8717bd7b258b. 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 635,687:crates/hub-api/src/lib.rs.