History of start 1 change

In crates/backdrop/src/lib.rs, lines 172–290 on 61ecbd299f22db4f8ed79fb1e3cc558994a8ac49e7f2315d576e0e1cf1fab587. 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.