update ignore list in final loop using 'used' set
update ignore list in final loop using 'used' set

chenm001/connectal,csail-csg/connectal,cambridgehackers/connectal,hanw/connectal,hanw/connectal,8l/connectal,chenm001/connectal,cambridgehackers/connectal,cambridgehackers/connectal,cambridgehackers/connectal,csail-csg/connectal,hanw/connectal,chenm001/connectal,8l/connectal,csail-csg/connectal,hanw/connectal,8l/connectal,csail-csg/connectal,8l/connectal,chenm001/connectal,csail-csg/connectal,8l/connectal,chenm001/connectal,cambridgehackers/connectal,hanw/connectal