panic: interface conversion: *kernel.Kernel is not unimpl.Events: missing method EmitUnimplementedEvent

goroutine 940 [running]:
panic({0x328f60, 0xc000460b10})
	GOROOT/src/runtime/panic.go:987 +0x3bb fp=0xc0012af150 sp=0xc0012af090 pc=0x128cbdb
runtime.getitab(0x330480, 0x4c4ec0, 0x0)
	GOROOT/src/runtime/iface.go:92 +0x1e5 fp=0xc0012af198 sp=0xc0012af150 pc=0x1260565
runtime.assertE2I(0x207aa5f?, 0x2af900?)
	GOROOT/src/runtime/iface.go:453 +0x25 fp=0xc0012af1c0 sp=0xc0012af198 pc=0x1261565
gvisor.dev/gvisor/pkg/sentry/unimpl.EmitUnimplementedEvent({0x82ad98, 0xc0013e1500})
	pkg/sentry/unimpl/events.go:44 +0x65 fp=0xc0012af200 sp=0xc0012af1c0 pc=0x1a85be5
gvisor.dev/gvisor/pkg/sentry/fsimpl/devpts.maybeEmitUnimplementedEvent({0x82ad98, 0xc0013e1500}, 0x5404)
	pkg/sentry/fsimpl/devpts/master.go:247 +0x10c fp=0xc0012af220 sp=0xc0012af200 pc=0x207ba4c
gvisor.dev/gvisor/pkg/sentry/fsimpl/devpts.(*masterFileDescription).Ioctl(0xc0006baa80, {0x82ad98, 0xc0013e1500}, {0x824ff0, 0xc001184000}, {{0x3}, {0x5404}, {0x20000040}, {0x0}, {0x0}, ...})
	pkg/sentry/fsimpl/devpts/master.go:196 +0x909 fp=0xc0012af310 sp=0xc0012af220 pc=0x207b2e9
gvisor.dev/gvisor/pkg/sentry/vfs.(*FileDescription).Ioctl(...)
	pkg/sentry/vfs/file_description.go:712
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Ioctl(0xc0013e1500, 0x0?, {{0x3}, {0x5404}, {0x20000040}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:286 +0x582 fp=0xc0012af480 sp=0xc0012af310 pc=0x1ce1ce2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0013e1500, 0x10, {{0x3}, {0x5404}, {0x20000040}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9c2 fp=0xc0012af960 sp=0xc0012af480 pc=0x1afdde2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0013e1500, 0x0?, {{0x3}, {0x5404}, {0x20000040}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc0012af9f8 sp=0xc0012af960 pc=0x1affbdd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000d36c30?, 0xc0007984b0?, {{0x3}, {0x5404}, {0x20000040}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc0012afa70 sp=0xc0012af9f8 pc=0x1aff58f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0013e1500)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc0012afb98 sp=0xc0012afa70 pc=0x1aff125
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0013e1500?, 0xc0013e1500)
	pkg/sentry/kernel/task_run.go:269 +0x1d4b fp=0xc0012afe70 sp=0xc0012afb98 pc=0x1ae99cb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0013e1500, 0x38)
	pkg/sentry/kernel/task_run.go:98 +0x41b fp=0xc0012affb0 sp=0xc0012afe70 pc=0x1ae725b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc0012affe0 sp=0xc0012affb0 pc=0x1afb8e8
runtime.goexit()
	src/runtime/asm_amd64.s:1598 +0x1 fp=0xc0012affe8 sp=0xc0012affe0 pc=0x12c5b21
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad