fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0xb8 pc=0x44c57a]

goroutine 0 [idle]:
runtime.throw({0xb05919?, 0x0?})
	/usr/local/go/src/runtime/panic.go:1047 +0x5d fp=0xc000135c60 sp=0xc000135c30 pc=0x4363bd
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:821 +0x3e9 fp=0xc000135cc0 sp=0xc000135c60 pc=0x44d0a9
runtime.(*sigctxt).regs(...)
	/usr/local/go/src/runtime/signal_linux_amd64.go:20
runtime.(*sigctxt).rip(...)
	/usr/local/go/src/runtime/signal_linux_amd64.go:42
runtime.(*sigctxt).sigpc(...)
	/usr/local/go/src/runtime/signal_amd64.go:41
runtime.sighandler(0x4c34d740, 0xc00012a800?, 0xc000135da0?, 0xc000007040)
	/usr/local/go/src/runtime/signal_unix.go:670 +0x1da fp=0xc000135d78 sp=0xc000135cc0 pc=0x44c57a
runtime.sigtrampgo(0x4c34d740, 0xc000044138, 0x10)
	/usr/local/go/src/runtime/signal_unix.go:479 +0x1b4 fp=0xc000135df0 sp=0xc000135d78 pc=0x44bf54
runtime.sigtramp()
	/usr/local/go/src/runtime/sys_linux_amd64.s:354 +0x46 fp=0xc000135e40 sp=0xc000135df0 pc=0x46b2e6