History of schemas 2 changes

In crates/hub-api/src/lib.rs, lines 600–649 on b19606f28101e4fa0c7fc3588f84f9af2afd54943f6e2138cc1cad04094fbc3e. 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 600,649:crates/hub-api/src/lib.rs.