WARNING: DATA RACE
Write at 0x00c005e509e4 by goroutine 5030552:
  gvisor.dev/gvisor/pkg/sentry/platform/systrap.(*subprocessPool).fetchAvailable()
      pkg/sentry/platform/systrap/subprocess_pool.go:74 +0x248
  gvisor.dev/gvisor/pkg/sentry/platform/systrap.newSubprocess()
      pkg/sentry/platform/systrap/subprocess.go:249 +0x64
  gvisor.dev/gvisor/pkg/sentry/platform/systrap.(*Systrap).NewAddressSpace()
      pkg/sentry/platform/systrap/systrap.go:364 +0x6e
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewAddressSpace()
      <autogenerated>:1 +0x77
  gvisor.dev/gvisor/pkg/sentry/mm.(*MemoryManager).Activate()
      pkg/sentry/mm/address_space.go:86 +0x13a
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Activate()
      pkg/sentry/kernel/task_usermem.go:39 +0x59
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:70 +0x2e4
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
      pkg/sentry/kernel/task_start.go:377 +0x47

Previous read at 0x00c005e509e4 by goroutine 5030205:
  gvisor.dev/gvisor/pkg/sentry/platform/systrap.(*subprocess).unregisterContext()
      pkg/sentry/platform/systrap/subprocess.go:978 +0xd7
  gvisor.dev/gvisor/pkg/sentry/platform/systrap.(*context).Release()
      pkg/sentry/platform/systrap/systrap.go:286 +0x95
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:101 +0x51a
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
      pkg/sentry/kernel/task_start.go:377 +0x47