History of Server::backend 1 change

In crates/oxy-server/src/lib.rs, lines 240–242 on fa53a2849de8c3e11ee3504c97eaae90de7bb38578d4c6ce04ce27572edab824. 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 240,242:crates/oxy-server/src/lib.rs.