panic: Decrementing non-positive ref count 0xc0002186c0, owned by vfs.Filesystem

goroutine 259 [running]:
panic({0xfe2ce0?, 0xc0005c67d0?})
	GOROOT/src/runtime/panic.go:1017 +0x3ac fp=0xc0006619f0 sp=0xc000661940 pc=0x43a72c
gvisor.dev/gvisor/pkg/sentry/vfs.(*FilesystemRefs).DecRef(0xc0002186c0, 0xc0004e28f0?)
	bazel-out/k8-fastbuild/bin/pkg/sentry/vfs/filesystem_refs.go:126 +0x10c fp=0xc000661a58 sp=0xc0006619f0 pc=0x75580c
gvisor.dev/gvisor/pkg/sentry/vfs.(*Filesystem).DecRef(0x10f7400?, {0x1442c78?, 0xc0006b0000?})
	pkg/sentry/vfs/filesystem.go:77 +0x4b fp=0xc000661a98 sp=0xc000661a58 pc=0x75504b
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc00002f358, {0x1442c78, 0xc0006b0000})
	pkg/sentry/vfs/vfs.go:1030 +0x16e fp=0xc000661b48 sp=0xc000661a98 pc=0x7702ae
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy.func1()
	pkg/sentry/vfs/mount.go:826 +0x28 fp=0xc000661b70 sp=0xc000661b48 pc=0x75d4e8
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).destroy(0xc000222f20, {0x1442c78, 0xc0006b0000})
	pkg/sentry/vfs/mount.go:839 +0x1e2 fp=0xc000661c10 sp=0xc000661b70 pc=0x75d442
gvisor.dev/gvisor/pkg/sentry/vfs.(*Mount).DecRef(0xc000222f20, {0x1442c78, 0xc0006b0000})
	pkg/sentry/vfs/mount.go:820 +0x65 fp=0xc000661c38 sp=0xc000661c10 pc=0x75d225
gvisor.dev/gvisor/pkg/sentry/vfs.VirtualDentry.DecRef({0xc000222f20?, 0xc00016db00?}, {0x1442c78, 0xc0006b0000})
	pkg/sentry/vfs/vfs.go:1086 +0x53 fp=0xc000661c68 sp=0xc000661c38 pc=0x7703f3
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualDentry).DecRef(0xc000661cd8?, {0x1442c78?, 0xc0006b0000?})
	<autogenerated>:1 +0x3e fp=0xc000661c98 sp=0xc000661c68 pc=0x77e9de
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).unlockMounts(0xc00002f358, {0x1442c78, 0xc0006b0000})
	pkg/sentry/vfs/vfs.go:1030 +0x16e fp=0xc000661d48 sp=0xc000661c98 pc=0x7702ae
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).Destroy(0xc0000170b0, {0x1442c78, 0xc0006b0000})
	pkg/sentry/vfs/namespace.go:201 +0x85 fp=0xc000661d80 sp=0xc000661d48 pc=0x763665
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef.func1()
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x2e fp=0xc000661da8 sp=0xc000661d80 pc=0x7f068e
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*inodeRefs).DecRef(0x0?, 0xc000661e20)
	bazel-out/k8-fastbuild/bin/pkg/sentry/fsimpl/nsfs/inode_refs.go:132 +0x42 fp=0xc000661e10 sp=0xc000661da8 pc=0x7f0342
gvisor.dev/gvisor/pkg/sentry/fsimpl/nsfs.(*Inode).DecRef(0xc0006b0000?, {0x1442c78?, 0xc0006b0000?})
	pkg/sentry/fsimpl/nsfs/nsfs.go:96 +0x52 fp=0xc000661e50 sp=0xc000661e10 pc=0x7f0632
gvisor.dev/gvisor/pkg/sentry/vfs.(*MountNamespace).DecRef(...)
	pkg/sentry/vfs/namespace.go:216
gvisor.dev/gvisor/pkg/sentry/kernel.(*runExitMain).execute(0xc0006b0000, 0xc0006b0000)
	pkg/sentry/kernel/task_exit.go:297 +0x5a2 fp=0xc000661f48 sp=0xc000661e50 pc=0x97c062
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0006b0000, 0x3)
	pkg/sentry/kernel/task_run.go:98 +0x1ef fp=0xc000661fc0 sp=0xc000661f48 pc=0x9864af
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:391 +0x25 fp=0xc000661fe0 sp=0xc000661fc0 pc=0x991525
runtime.goexit()
	src/runtime/asm_amd64.s:1650 +0x1 fp=0xc000661fe8 sp=0xc000661fe0 pc=0x471241
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 244
	pkg/sentry/kernel/task_start.go:391 +0xe5