History of main 8 changes

In src/main.rs, lines 8–22 on 1f53d5b91eb5f2d67b7733d87ad53b41c0d6b8ba3c42eca34dc02933f2ba0887+648724d8e0de1b9d91b6f226b95c06ca3de617dca4607e411566a75388b42c3c+d02e545dc265940fdff440a6459e9b42cfec48124827b5f3c613b95b53842c74. 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 8,22:src/main.rs.