History of project 6 changes

In crates/oh/src/main.rs, lines 2245–2411 on 8f1d76f4169ab0ad61c184b6889680cfe0da3d6b626f1b29f58e1b33a7903319. 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 2245,2411:crates/oh/src/main.rs.