History of main 9 changes

In src/main.rs, lines 8–23 on 0bb9413f0118b6ad6276634b205455db9ea7900a73b2497eb854883ca0bb667a+1a16fa09aaffb0bc9fb194f496d57e3d5df1fdd20e16f104c546e04fc214c953+75036530b62161b517e759e8319fc1fdc21e45d9e62e1d01ab78b8ffc0673ba2. 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 8,23:src/main.rs.