History of main 1 change

In crates/hub/build.rs, lines 4–20 on 3d3d29fbcb008dca2ae086b2dd0a8d714d2e38a12a354b84d0ecd474ad0eb196. 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.