History of build 4 changes

In crates/hub/src/lib.rs, lines 40–62 on 8d2caf1225172e2a53172fa6e85d88cb18e5d01807a47f4c96473aab76c281cf. 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 40,62:crates/hub/src/lib.rs.