panic: Incrementing non-positive count 0xc000c04ae8 on nsfs.Inode

goroutine 18923 gp=0xc000a48e00 m=34 mp=0xc000a90808 [running]:
panic({0x12149a0?, 0xc0005b6730?})
	GOROOT/src/runtime/panic.go:802 +0x168 fp=0xc00079b8c0 sp=0xc00079b810 pc=0x47fec8
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).IncRef(0xc000c04ae8)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:82 +0xe8 fp=0xc00079b928 sp=0xc00079b8c0 pc=0x97b9c8
gvisor.dev/gvisor/pkg/sentry/kernel.(*PIDNamespace).IncRef(...)
	pkg/sentry/kernel/threads.go:258
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).GetPIDNamespace(...)
	pkg/sentry/kernel/threads.go:577
gvisor.dev/gvisor/pkg/sentry/kernel.(*namespaceSet).initFromTask(0xc00079b988, 0xffffffff?, 0xc000e2cc88, 0x20000000)
	pkg/sentry/kernel/task_clone.go:532 +0x85 fp=0xc00079b950 sp=0xc00079b928 pc=0xadf8c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Setns(0xc001205208, 0xc001248c80, 0x20000000)
	pkg/sentry/kernel/task_clone.go:612 +0x225 fp=0xc00079ba00 sp=0xc00079b950 pc=0xadff65
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Setns(0xc001205208, 0x0?, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_thread.go:479 +0xa5 fp=0xc00079ba78 sp=0xc00079ba00 pc=0xcc4265
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001205208, 0x134, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x655 fp=0xc00079bca8 sp=0xc00079ba78 pc=0xafb7f5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001205208, 0x134, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc00079bd00 sp=0xc00079bca8 pc=0xafc945
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001205208, 0x134, {{0x3}, {0x20000000}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc00079bd50 sp=0xc00079bd00 pc=0xafc665
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000786750?)
	pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc00079be28 sp=0xc00079bd50 pc=0xafc3e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a6abd0?, 0xc001205208)
	pkg/sentry/kernel/task_run.go:258 +0xfbc fp=0xc00079bf30 sp=0xc00079be28 pc=0xaf1f3c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001205208, 0xfe9)
	pkg/sentry/kernel/task_run.go:89 +0x202 fp=0xc00079bfc0 sp=0xc00079bf30 pc=0xaf09c2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:416 +0x25 fp=0xc00079bfe0 sp=0xc00079bfc0 pc=0xafa265
runtime.goexit({})
	src/runtime/asm_amd64.s:1693 +0x1 fp=0xc00079bfe8 sp=0xc00079bfe0 pc=0x489161
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 507
	pkg/sentry/kernel/task_start.go:416 +0xc5