History of Server::backend 1 change

In crates/oxy-server/src/lib.rs, lines 174–176 on 36695c5e02efe40e62f8fdc51e445000e2ea01664a9bafef468229d395343bf2. 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 174,176:crates/oxy-server/src/lib.rs.