File	Line Coverage			Functions
concat.rs	18.75%	18.75%	6 / 32	33.33%	4 / 12
equals.rs	100%	100%	13 / 13	33.33%	2 / 6
neq.rs	54.55%	54.55%	6 / 11	33.33%	2 / 6
subset.rs	23.08%	23.08%	3 / 13	33.33%	2 / 6
supset.rs	25%	25%	3 / 12	33.33%	2 / 6
supseteq.rs	25%	25%	3 / 12	33.33%	2 / 6