The size of the partition that you are trying to migrate from the HDD is greater than the SSD capacity - - it won't fit.
You need to "shrink" the C partition on the HDD till it's small enough to fit on the SSD.
You can do that in Windows Disk Management (Shrink Volume).
If it won't shrink small enough, you will either have to "clean install" Windows on to the SSD, or buy an SSD with a higher capacity than the one you have now.