History of watch 1 change

In crates/oh/src/main.rs, lines 856–879 on d2c1d6a7d12edeaca968546dc2fde25068f3de0afaee844ff11d5afd514e43eb. 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.