How can I remove a rust stain from vinyl flooring?

Question:I placed a plastic tote on my kitchen floor. I guess water got trapped under it. Now there's a horrible rust stain. I've tried cleanser and CLR. Does anything else help?

Answers:
Please to not laugh.but this works: use (full strength) Shout laundry stain remover. Let it sit for a couple minutes, scrub but do not wipe, let the scrubbed froth set for a couple minutes, then scrub again and wipe up. I swear this works. I use Shout to get my dingy old floor to look almost new. I tried it out of desperation one day when three other cleaners didn't work.