History of run 6 changes

In crates/oh/src/main.rs, lines 569–656 on 26d0d091deb7b807245fc3dd435d1460dd6f3301efdccc427cfdd79f4c8246e6. 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 569,656:crates/oh/src/main.rs.