History of main 9 changes

In src/main.rs, lines 8–23 on 75036530b62161b517e759e8319fc1fdc21e45d9e62e1d01ab78b8ffc0673ba2+9a8ede1e609fd5c2b073b2bfaf26b1c92c30c7b3f8b55c6c34f53f97c666ca60+fe8a49ce608fb84266d3c5f4cd5c44228122e1e6dba2dd3a013a4e535b4c4762. 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.