#!watchflakes
default <- pkg == "strings" && test == ""

runtime: g1: frame.sp=0x40001a7e10 top=0x40001c7fd0
	stack=[0x4000188000-0x40001c8000
fatal error: traceback did not unwind completely

runtime stack:
runtime.throw({0x1abac7?, 0x4000187d48?})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/panic.go:1069 +0x38 fp=0x4000187ba0 sp=0x4000187b70 pc=0x7d588
runtime.(*unwinder).finishInternal(0x4000187c08?)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/traceback.go:566 +0x110 fp=0x4000187be0 sp=0x4000187ba0 pc=0x6b3d0
runtime.(*unwinder).next(0x4000187cc0?)
...
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/proc.go:435 +0xc8 fp=0x400004f710 sp=0x400004f6f0 pc=0x7d6a8
runtime.gcBgMarkWorker(0x400007e000)
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mgc.go:1362 +0xdc fp=0x400004f7b0 sp=0x400004f710 pc=0x2713c
runtime.gcBgMarkStartWorkers.gowrap1()
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mgc.go:1278 +0x28 fp=0x400004f7d0 sp=0x400004f7b0 pc=0x27028
runtime.goexit({})
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/asm_arm64.s:1223 +0x4 fp=0x400004f7d0 sp=0x400004f7d0 pc=0x84314
created by runtime.gcBgMarkStartWorkers in goroutine 1
	/home/swarming/.swarming/w/ir/x/w/goroot/src/runtime/mgc.go:1278 +0x140
FAIL	strings	1.150s