History of run 1 change

In src/main.rs, lines 86–213 on 123ba31b83f26a7f78b3eb6ac4f225d8c60da0ea240ed3db375b8d27a029ca9e. 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.