syz_usb_control_io$hid(r0, 0x0, 0x0) (async)
syz_usb_control_io(r0, 0x0, 0x0) (async)
panic: replaceArg: group fields don't match: 0/1

goroutine 33 [running]:
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a279c0?}, {0xe56770?, 0xc000a2e000?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:377 +0x425
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a27940?}, {0xe56770?, 0xc000a27f80?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a278c0?}, {0xe56770?, 0xc000a27f00?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a278a0?}, {0xe56770?, 0xc000a27ee0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a27880?}, {0xe56770?, 0xc000a27ec0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a27860?}, {0xe56770?, 0xc000a27ea0?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a27840?}, {0xe56770?, 0xc000a27e80?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a27820?}, {0xe56770?, 0xc000a27e60?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.replaceArg({0xe56770?, 0xc000a27800?}, {0xe56770?, 0xc000a27e40?})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/prog.go:382 +0x345
github.com/google/syzkaller/prog.(*StructType).mutate(0x16d4620, 0xc000a27a20, 0xc00c4d9b80, {0xe56770, 0xc000a277e0?}, {0xc00c4d99f8, {0x1db7580, 0x4, 0x4}, 0xc00c6a40c0, ...})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:490 +0x185
github.com/google/syzkaller/prog.(*Target).mutateArg(0x0?, 0xc000f86fe0?, 0xc0012f1dc8?, {0xe56770, 0xc000a277e0}, {0xc00c4d99f8, {0x1db7580, 0x4, 0x4}, 0xc00c6a40c0, ...}, ...)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:245 +0xe2
github.com/google/syzkaller/prog.(*mutator).mutateArg(0xc0012f1e48)
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:196 +0x245
github.com/google/syzkaller/prog.(*Prog).Mutate(0xc00c69fa80, {0xe52aa8?, 0xc001562960}, 0x1e, 0xc0014100c0, 0xc000088f00, {0xc000550000, 0x40d, 0x500})
	/syzkaller/gopath/src/github.com/google/syzkaller/prog/mutation.go:51 +0x2ba
main.(*Proc).loop(0xc0014103c0)
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/proc.go:95 +0x365
created by main.main in goroutine 1
	/syzkaller/gopath/src/github.com/google/syzkaller/syz-fuzzer/fuzzer.go:336 +0x1665