History of watch 1 change

In crates/oh/src/main.rs, lines 856–879 on 206c1fc1b06a90b3388b36ad52ef832b9ba9e24ab182773e44022baf4c7c27bb. 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 856,879:crates/oh/src/main.rs.