panic: runtime error: index out of range [0] with length 0

goroutine 698827 [running]:
panic({0x122c2c0, 0xc003164918})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0010bd1b0 sp=0xc0010bd0f0 pc=0x43763a
runtime.goPanicIndex(0x0, 0x0)
	GOROOT/src/runtime/panic.go:113 +0x7f fp=0xc0010bd1f0 sp=0xc0010bd1b0 pc=0x4354ff
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*lisafsDentry).getRemoteChildAndWalkPathLocked(0xc000752000, {0x1576158, 0xc00875ca80}, 0x0?, 0xc0010bd608)
	pkg/sentry/fsimpl/gofer/lisafs_dentry.go:265 +0x351 fp=0xc0010bd2d8 sp=0xc0010bd1f0 pc=0xd9b311
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*dentry).getRemoteChildAndWalkPathLocked(0xc000752000?, {0x1576158?, 0xc00875ca80?}, 0xd9371c?, 0xc004ee5200?)
	pkg/sentry/fsimpl/gofer/dentry_impl.go:211 +0x65 fp=0xc0010bd310 sp=0xc0010bd2d8 pc=0xd7c925
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).getChildAndWalkPathLocked(0xc000e95390?, {0x1576158, 0xc00875ca80}, 0x0?, 0xc00191a000, 0xc000e95608?)
	pkg/sentry/fsimpl/gofer/filesystem.go:265 +0xc6 fp=0xc0010bd358 sp=0xc0010bd310 pc=0xd82086
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).stepLocked(0xc00054c480?, {0x1576158, 0xc00875ca80}, 0xc00191a000, 0xc000752000, 0x1, 0x40?)
	pkg/sentry/fsimpl/gofer/filesystem.go:205 +0x287 fp=0xc0010bd3b0 sp=0xc0010bd358 pc=0xd819e7
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).walkParentDirLocked(0x7fbaaa672400?, {0x1576158, 0xc00875ca80}, 0xc00191a000, 0xc000752000, 0xc007c47a00?)
	pkg/sentry/fsimpl/gofer/filesystem.go:313 +0x11d fp=0xc0010bd430 sp=0xc0010bd3b0 pc=0xd823bd
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).unlinkAt(0xc00054c480, {0x1576158, 0xc00875ca80}, 0xc00191a000, 0x1)
	pkg/sentry/fsimpl/gofer/filesystem.go:495 +0x18e fp=0xc0010bd720 sp=0xc0010bd430 pc=0xd83c6e
gvisor.dev/gvisor/pkg/sentry/fsimpl/gofer.(*filesystem).RmdirAt(0xc00191a000?, {0x1576158?, 0xc00875ca80?}, 0x155d1e0?)
	pkg/sentry/fsimpl/gofer/filesystem.go:1400 +0x32 fp=0xc0010bd758 sp=0xc0010bd720 pc=0xd8bdd2
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).RmdirAt(0xc000566100?, {0x1576158, 0xc00875ca80}, 0xc009233800?, 0xc007c47a00?)
	pkg/sentry/vfs/vfs.go:565 +0x143 fp=0xc0010bd7b0 sp=0xc0010bd758 pc=0x78e403
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.rmdirat(0xc00875ca80, 0x0?, 0x0?)
	pkg/sentry/syscalls/linux/sys_file.go:946 +0x206 fp=0xc0010bd920 sp=0xc0010bd7b0 pc=0xb02626
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Rmdir(0xc00875ca80?, {{0x20000400}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:933 +0x37 fp=0xc0010bd948 sp=0xc0010bd920 pc=0xb023f7
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00875ca80, 0x54, {{0x20000400}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc0010bdc88 sp=0xc0010bd948 pc=0x9b95ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00875ca80, 0x85?, {{0x20000400}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc0010bdce8 sp=0xc0010bdc88 pc=0x9bab94
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000e95d90?, 0x971c06?, {{0x20000400}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc0010bdd48 sp=0xc0010bdce8 pc=0x9ba785
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc002d27520?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc0010bde40 sp=0xc0010bdd48 pc=0x9ba44c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc009493d00?, 0xc00875ca80)
	pkg/sentry/kernel/task_run.go:256 +0x1245 fp=0xc0010bdf60 sp=0xc0010bde40 pc=0x9ac305
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00875ca80, 0x3f62)
	pkg/sentry/kernel/task_run.go:94 +0x229 fp=0xc0010bdfc0 sp=0xc0010bdf60 pc=0x9aaa29
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0010bdfe0 sp=0xc0010bdfc0 pc=0x9b7a2a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0010bdfe8 sp=0xc0010bdfe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105