panic: Decrementing non-positive ref count 0xc0002185a0, owned by vfs.Filesystem

goroutine 277 [running]:
panic({0x298360?, 0xc00068e800?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc000b0b730 sp=0xc000b0b680 pc=0x12bcd6c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc0002185a0, 0xc000b0b7a8)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x12c fp=0xc000b0b798 sp=0xc000b0b730 pc=0x18422cc
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc0002185a0, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/filesystem.go:77 +0x69 fp=0xc000b0b7d8 sp=0xc000b0b798 pc=0x18418e9
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc00049e1d8, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/vfs.go:1030 +0x1e9 fp=0xc000b0b8b0 sp=0xc000b0b7d8 pc=0x186bb29
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x50 fp=0xc000b0b8f0 sp=0xc000b0b8b0 pc=0x184e870
runtime.deferreturn()
	GOROOT/src/runtime/panic.go:477 +0x31 fp=0xc000b0b928 sp=0xc000b0b8f0 pc=0x12bbeb1
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc00021e790, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/mount.go:839 +0x4ad fp=0xc000b0ba60 sp=0xc000b0b928 pc=0x184e78d
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc00021e790, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/mount.go:820 +0x79 fp=0xc000b0ba88 sp=0xc000b0ba60 pc=0x184e299
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc00021e790?, 0xc00056e000?}, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/vfs.go:1086 +0x85 fp=0xc000b0bac0 sp=0xc000b0ba88 pc=0x186bcc5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualDentry).DecRef(0xc00068e770, {0x7efef8, 0xc0007bb500})
	<autogenerated>:1 +0x65 fp=0xc000b0baf0 sp=0xc000b0bac0 pc=0x1882c45
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc00049e1d8, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/vfs.go:1030 +0x1e9 fp=0xc000b0bbc8 sp=0xc000b0baf0 pc=0x186bb29
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc0001f63f0, {0x7efef8, 0xc0007bb500})
	pkg/sentry/vfs/namespace.go:201 +0xf1 fp=0xc000b0bc18 sp=0xc000b0bbc8 pc=0x18578f1
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x6f fp=0xc000b0bc58 sp=0xc000b0bc18 pc=0x1944e0f
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0xc0002a03e0, 0xc000b0bcd0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0x56 fp=0xc000b0bcc0 sp=0xc000b0bc58 pc=0x19448d6
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc0002a0380, {0x7efef8, 0xc0007bb500})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x70 fp=0xc000b0bd00 sp=0xc000b0bcc0 pc=0x1944d50
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...)
	pkg/sentry/vfs/namespace.go:216
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc0007bb500, 0xc0007bb500)
	pkg/sentry/kernel/task_exit.go:297 +0xa5e fp=0xc000b0be70 sp=0xc000b0bd00 pc=0x1be081e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0007bb500, 0x5)
	pkg/sentry/kernel/task_run.go:98 +0x43b fp=0xc000b0bfb0 sp=0xc000b0be70 pc=0x1bf301b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x45 fp=0xc000b0bfe0 sp=0xc000b0bfb0 pc=0x1c078a5
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000b0bfe8 sp=0xc000b0bfe0 pc=0x12f5d81
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 231
	pkg/sentry/kernel/task_start.go:391 +0x1ae