MCC Laws of cricket Law 41.15:
15. Bowler attempting to run out non-striker before delivery
The bowler is permitted, before entering his delivery stride, to attempt to run out the non-striker. Whether the attempt is successful or not, the ball shall not count as one of the over.
If the bowler fails in an attempt to run out the non-striker, the umpire shall call and signal Dead ball as soon as possible.
ICC Standard ODI Match Playing Conditions:
So Joss Butler was out under the playing conditions for this match, since Senanayake was into his delivery stride but had not rotated his bowling arm.
But if some opposition idiot tries it next saturday, it’s not out since club matches are played under MCC Laws of Cricket (and any league regulations), not ICC ODI playing conditions.