History of run 6 changes

In crates/oh/src/main.rs, lines 569–656 on c95446a17fddd892eaaa5513071c20ea4d154b748a7e0df5116d8e067ef834b2. 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.