History of run 1 change

In src/main.rs, lines 86–213 on 1a16fa09aaffb0bc9fb194f496d57e3d5df1fdd20e16f104c546e04fc214c953. 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 86,213:src/main.rs.