History of start 1 change

In crates/backdrop/src/lib.rs, lines 172–290 on 7ebb7052bc7f6abcefdf84c938956180c0e85bddf427477442e5c45c9a56f036. 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 172,290:crates/backdrop/src/lib.rs.