fatal error: unexpected signal during runtime execution
[signal SIGSEGV: segmentation violation code=0x1 addr=0x5e0d pc=0x44c54c]

goroutine 0 [idle]:
runtime.throw({0xb05919?, 0xf523eb?})
	/usr/local/go/src/runtime/panic.go:1047 +0x5d fp=0xc0011c58e0 sp=0xc0011c58b0 pc=0x4363bd
runtime.sigpanic()
	/usr/local/go/src/runtime/signal_unix.go:821 +0x3e9 fp=0xc0011c5940 sp=0xc0011c58e0 pc=0x44d0a9
runtime.(*sigctxt).sigcode(...)
	/usr/local/go/src/runtime/signal_linux_amd64.go:48
runtime.(*sigctxt).sigFromUser(...)
	/usr/local/go/src/runtime/os_linux.go:905
runtime.sighandler(0x8, 0xc002d89c00?, 0xc0011c5a20?, 0xc000942ea0)
	/usr/local/go/src/runtime/signal_unix.go:665 +0x1ac fp=0xc0011c59f8 sp=0xc0011c5940 pc=0x44c54c
runtime.sigtrampgo(0x8, 0x5e05, 0x17)
	/usr/local/go/src/runtime/signal_unix.go:479 +0x1b4 fp=0xc0011c5a70 sp=0xc0011c59f8 pc=0x44bf54
runtime.sigtramp()
	/usr/local/go/src/runtime/sys_linux_amd64.s:354 +0x46 fp=0xc0011c5ac0 sp=0xc0011c5a70 pc=0x46b2e6