History of bench 1 change

In crates/flow/src/facts.rs, lines 72–94 on c2430ac3b728f80a32926e6d0540b6ef68dec852f039d2cf4b8afdea7d25e855. 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 72,94:crates/flow/src/facts.rs.