panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xb16cd8]

goroutine 925 gp=0xc001aadc00 m=29 mp=0xc001f80008 [running]:
panic({0x12ad7c0?, 0x236f6b0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc001139390 sp=0xc0011392e0 pc=0x473fe8
runtime.panicmem(...)
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:262
runtime.sigpanic()
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/signal_unix.go:900 +0x359 fp=0xc0011393f0 sp=0xc001139390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc00127ba00)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc001139450 sp=0xc0011393f0 pc=0xb16cd8
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x100012bab98?, 0xc000f65b70?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc001139478 sp=0xc001139450 pc=0xaf6977
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000f65b70, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc001139518 sp=0xc001139478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000f65408, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc001139590 sp=0xc001139518 pc=0xaf6685
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc00023b008, 0xc00093e8c0, 0xc000835ec0, 0x0, 0xc000835ee0)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc0011395d0 sp=0xc001139590 pc=0xb23a0c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc001494008, 0xc001139978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc001139968 sp=0xc0011395d0 pc=0xafc47b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0xc001aadc00?, 0x300000002?, 0xc001139ac0?, 0x474a0e?, 0xc001aadc00?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc001139a38 sp=0xc001139968 pc=0xcfdc7d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x49a099?, 0xc001139ad0?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc001139a78 sp=0xc001139a38 pc=0xcbdcc8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001494008, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc001139ca8 sp=0xc001139a78 pc=0xb1e2ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001494008, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc001139d00 sp=0xc001139ca8 pc=0xb1f84e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001494008, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc001139d50 sp=0xc001139d00 pc=0xb1f3fd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0013cb450?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc001139e28 sp=0xc001139d50 pc=0xb1f0e9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001346900?, 0xc001494008)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc001139f38 sp=0xc001139e28 pc=0xb12945
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001494008, 0xb1)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc001139fc0 sp=0xc001139f38 pc=0xb10f5d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc001139fe0 sp=0xc001139fc0 pc=0xb1c825
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc001139fe8 sp=0xc001139fe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 958
	pkg/sentry/kernel/task_start.go:400 +0xd9