Both of these validated just fine for me.
I suggest you post your Tweet and the Twitter Card including image will most likely show up even though it failed in the validator.
If the Twitter Card does happen to fail in your Tweet, another trick is to leave the www out of the URL you Tweet because that might work, it worked for me.
If everything listed above fails and you still get no Twitter Card in your Tweet, you can delete your Tweet and wait for Twitter admin to assist you, I’ve been waiting for a very longtime here and have a feeling user to user support is the best you’re going to get unless your name is Microsoft as that is the only person I have seen here get a reply from Twitter admin in the last several days here in the Twitter Cards discussions forum.
God bless you Twitter Card using friend, it is people like you who make spending time on Twitter a worthwhile experience for me and for that I am thankful.