File	Line Coverage			Functions
concat.rs	18.75%	18.75%	6 / 32	66.67%	4 / 6
equals.rs	100%	100%	13 / 13	66.67%	2 / 3
neq.rs	54.55%	54.55%	6 / 11	66.67%	2 / 3
subset.rs	23.08%	23.08%	3 / 13	66.67%	2 / 3
supset.rs	25%	25%	3 / 12	66.67%	2 / 3
supseteq.rs	25%	25%	3 / 12	66.67%	2 / 3