I've reported this before, but it still happens. Today, I did a git pull into my local while master was checked out, both on poky and meta-intel. I then tried to rerun without cleaning or deleting anything for chiefriver. My last build had been successfully built, but didn't have audio. So when I saw patches, I thought I'd test again. I simply did

"source oe-init-build-env"
"bitbake core-image-sato"

I got a failure in diffutils for some reason. I then did

"bitbake -c cleansstate diffutils"
"bitbake core-image-sato".

This time it worked.

Jim A