panic: runtime error: floating point error
[signal SIGFPE: floating-point exception code=0x5 addr=0x42297c pc=0x42297c]

goroutine 4 [running]:
panic(0x1102000, 0x1cede20)
	GOROOT/src/runtime/panic.go:1064 +0x470 fp=0xc000097f48 sp=0xc000097e90 pc=0x437110
runtime.panicfloat(...)
	GOROOT/src/runtime/panic.go:205
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:735 +0x37b fp=0xc000097f78 sp=0xc000097f48 pc=0x44de5b
runtime.bgscavenge(0xc0000b6000)
	GOROOT/src/runtime/mgcscavenge.go:369 +0x1fc fp=0xc000097fd8 sp=0xc000097f78 pc=0x42297c
runtime.goexit()
	src/runtime/asm_amd64.s:1374 +0x1 fp=0xc000097fe0 sp=0xc000097fd8 pc=0x470681
created by runtime.gcenable
	GOROOT/src/runtime/mgc.go:218 +0x7e