fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0x4 pc=0x230c170]

runtime stack:
runtime.throw({0x513199?, 0x2d02248?})
	GOROOT/src/runtime/panic.go:1047 +0x40 fp=0xfffe8effcbc0 sp=0xfffe8effcb90 pc=0x12571d0
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:821 +0x240 fp=0xfffe8effcc00 sp=0xfffe8effcbc0 pc=0x126f9b0
racecall()
	src/runtime/race_arm64.s:423 +0x24 fp=0xfffe8effcc10 sp=0xfffe8effcc10 pc=0x128eeb4