Apparently, on UT-Martin's website they have changed the date of the Boise game to September 7th, the same day BSU was scheduled to travel to Washington.
This means the Washington game will either be:
1) Moved to August 31st
2) UW will reschedule Idaho St. or Illinois to play Boise on September 14th or 21st.
3) Game will be rescheduled for another year or cancelled altogether.