History of run 4 changes

In crates/oh/src/main.rs, lines 469–525 on 4bae285c6ed8f4866e83476f33ee04619ef87776f910db87e00a21b6ed0e5145. 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 469,525:crates/oh/src/main.rs.