panic: Incrementing non-positive ref count

goroutine 2657305 [running]:
gvisor.dev/gvisor/pkg/refs.(*AtomicRefCount).IncRef(...)
	pkg/refs/refcounter.go:370
gvisor.dev/gvisor/pkg/sentry/fs.(*Dirent).IncRef(...)
	pkg/sentry/fs/dirent.go:1309
gvisor.dev/gvisor/pkg/sentry/fs.(*Mount).Root(...)
	pkg/sentry/fs/mounts.go:106
gvisor.dev/gvisor/pkg/sentry/fs/proc.forEachMount(0xc000d82a80, 0xc0013b74b0)
	pkg/sentry/fs/proc/mounts.go:59 +0x356
gvisor.dev/gvisor/pkg/sentry/fs/proc.(*mountsFile).ReadSeqFileData(0xc000bd2980, 0xeab900, 0xc000deaa80, 0x0, 0x0, 0xc0011d8b88, 0xc000283870, 0xea56a0, 0xc000283870)
	pkg/sentry/fs/proc/mounts.go:174 +0x7d
DIAGNOSIS:
retrieving stacks: getting sandbox "ci-gvisor-ptrace-direct-overlay-host-3" stacks: urpc method "debug.Stacks" failed: connection reset by peer