fatal error: unexpected signal during runtime execution
[signal SIGFPE: floating-point exception code=0x6 addr=0x41a92e pc=0x41a92e]

runtime stack:
runtime.throw(0x11d40cf, 0x2a)
	GOROOT/src/runtime/panic.go:1116 +0x72 fp=0xc00056dec0 sp=0xc00056de90 pc=0x4374f2
runtime.sigpanic()
	GOROOT/src/runtime/signal_unix.go:704 +0x4ac fp=0xc00056def0 sp=0xc00056dec0 pc=0x44df8c
runtime.(*gcControllerState).revise(0x1ad35e0)
	GOROOT/src/runtime/mgc.go:518 +0x6e fp=0xc00056def8 sp=0xc00056def0 pc=0x41a92e
runtime.(*mheap).allocSpan(0x1ab9c80, 0x1, 0x7fe84c215700, 0x1ad4108, 0x7fe84c21d5e8)
	GOROOT/src/runtime/mheap.go:1205 +0x5e5 fp=0xc00056df78 sp=0xc00056def8 pc=0x428405
runtime.(*mheap).alloc.func1()
	GOROOT/src/runtime/mheap.go:907 +0x65 fp=0xc00056dfd0 sp=0xc00056df78 pc=0x4661a5
runtime.systemstack(0x0)
	src/runtime/asm_amd64.s:370 +0x66 fp=0xc00056dfd8 sp=0xc00056dfd0 pc=0x46eac6
runtime.mstart()
	GOROOT/src/runtime/proc.go:1116 fp=0xc00056dfe0 sp=0xc00056dfd8 pc=0x43c6c0