fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0x4 pc=0x230ccc0]

runtime stack:
runtime.throw({0x513151?, 0x2d03308?})
	GOROOT/src/runtime/panic.go:1047 +0x40 fp=0xfffef77fdbc0 sp=0xfffef77fdb90 pc=0x12569d0
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:821 +0x240 fp=0xfffef77fdc00 sp=0xfffef77fdbc0 pc=0x126f1b0
racecall()
	src/runtime/race_arm64.s:423 +0x24 fp=0xfffef77fdc10 sp=0xfffef77fdc10 pc=0x128e6b4