History of run 8 changes

In crates/oh/src/main.rs, lines 679–768 on 787632570bf924647f982368186b693468134d3617cec41ca11ed19451205d46. 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 679,768:crates/oh/src/main.rs.