67°F9:31 AM If you are known for your acoustic, bluegrass-inspired country-folk, opening your set with a Fleetwood Mac song may seem odd. Not if you're Sara Watkins. The fiddle-playing third of NickeL Creek has recently stepped out on her own with a self-titled debut solo album released last year. Sunday at Forecastle Festival 2010, Watkins played an eclectic and inspired set of originals and covers.