panic: Decrementing non-positive ref count 0xc0002b6120, owned by vfs.Filesystem

goroutine 97 [running]:
panic({0x298660?, 0xc0008b5c90?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc000787730 sp=0xc000787680 pc=0x12238ac
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc0002b6120, 0xc0007877a0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x13f fp=0xc000787790 sp=0xc000787730 pc=0x17f1c1f
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0xc0002b6120, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/filesystem.go:77 +0x7a fp=0xc0007877d0 sp=0xc000787790 pc=0x17f0f7a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc0006defd8, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/vfs.go:1030 +0x24d fp=0xc0007878a8 sp=0xc0007877d0 pc=0x18209ed
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x50 fp=0xc0007878e8 sp=0xc0007878a8 pc=0x18000d0
runtime.deferreturn()
	GOROOT/src/runtime/panic.go:477 +0x31 fp=0xc000787920 sp=0xc0007878e8 pc=0x12229f1
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc000294790, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/mount.go:839 +0x58d fp=0xc000787a60 sp=0xc000787920 pc=0x17fffed
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc000294790, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/mount.go:820 +0xca fp=0xc000787a90 sp=0xc000787a60 pc=0x17ffa2a
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc000294790?, 0xc0006c6400?}, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/vfs.go:1086 +0x6f fp=0xc000787ac8 sp=0xc000787a90 pc=0x1820baf
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualDentry).DecRef(0xc0008b5c30, {0x7295b8, 0xc000932a80})
	<autogenerated>:1 +0x65 fp=0xc000787af8 sp=0xc000787ac8 pc=0x1839cc5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc0006defd8, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/vfs.go:1030 +0x24d fp=0xc000787bd0 sp=0xc000787af8 pc=0x18209ed
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc00080c660, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/namespace.go:201 +0x111 fp=0xc000787c28 sp=0xc000787bd0 pc=0x180ab31
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x84 fp=0xc000787c68 sp=0xc000787c28 pc=0x1918384
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0xc0002e38e0, 0xc000787ce0)
	bazel-out/k8-fastbuild-ST-3dcbe13c9b87/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0xaf fp=0xc000787cc8 sp=0xc000787c68 pc=0x1917caf
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc0002e3880, {0x7295b8, 0xc000932a80})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x91 fp=0xc000787d10 sp=0xc000787cc8 pc=0x19182b1
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(0xc00080c660, {0x7295b8, 0xc000932a80})
	pkg/sentry/vfs/namespace.go:216 +0x64 fp=0xc000787d38 sp=0xc000787d10 pc=0x180acc4
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc000932a80, 0xc000932a80)
	pkg/sentry/kernel/task_exit.go:297 +0xa06 fp=0xc000787e60 sp=0xc000787d38 pc=0x1bd9126
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000932a80, 0x6)
	pkg/sentry/kernel/task_run.go:98 +0x36a fp=0xc000787fb0 sp=0xc000787e60 pc=0x1bed0aa
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x45 fp=0xc000787fe0 sp=0xc000787fb0 pc=0x1c031a5
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000787fe8 sp=0xc000787fe0 pc=0x125c8c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 120
	pkg/sentry/kernel/task_start.go:391 +0x1ce