History of main 1 change

In crates/hub/build.rs, lines 4–20 on df15b74774ca5bc2a21596eef9d70be392e4517c948b8af98000f4ac48223d92. 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 4,20:crates/hub/build.rs.