panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0xa7152e]

goroutine 1130 gp=0xc001120fc0 m=24 mp=0xc00040b108 [running]:
panic({0x1192560?, 0x2072ac0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc0009273a8 sp=0xc0009272f8 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=0xc000927408 sp=0xc0009273a8 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc00066ca00)
	pkg/sentry/kernel/task_signals.go:385 +0x2e fp=0xc000927468 sp=0xc000927408 pc=0xa7152e
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x70?, 0xc000c5ff70?)
	pkg/sentry/kernel/task_acct.go:151 +0x45 fp=0xc000927490 sp=0xc000927468 pc=0xa55ac5
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc000c5ff70, {0x0?, {0x1?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x204 fp=0xc000927530 sp=0xc000927490 pc=0x812744
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc000c5f808, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x10e fp=0xc000927598 sp=0xc000927530 pc=0xa557ee
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc0001f5008, 0xc001315500, 0xc00073aa20, 0x0, 0xc00073aa40)
	pkg/sentry/kernel/thread_group.go:308 +0x370 fp=0xc0009275d8 sp=0xc000927598 pc=0xa7bd90
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc00135b908, 0xc000927978)
	pkg/sentry/kernel/task_clone.go:238 +0x13e5 fp=0xc000927968 sp=0xc0009275d8 pc=0xa5aba5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x300000002?, 0xc000927ab0?, 0x474a0e?, 0xc001120fc0?, 0x200000003?, 0x0?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc000927a38 sp=0xc000927968 pc=0xc2ed9d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0xc000927b10?, 0xc000927b10?, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x2c fp=0xc000927a78 sp=0xc000927a38 pc=0xbe7d0c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00135b908, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x657 fp=0xc000927ca8 sp=0xc000927a78 pc=0xa77897
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00135b908, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x45 fp=0xc000927d00 sp=0xc000927ca8 pc=0xa78a05
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00135b908, 0x38, {{0x0}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x65 fp=0xc000927d50 sp=0xc000927d00 pc=0xa78705
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000e3e4e0?)
	pkg/sentry/kernel/task_syscall.go:258 +0x2a5 fp=0xc000927e28 sp=0xc000927d50 pc=0xa78485
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000f2da70?, 0xc00135b908)
	pkg/sentry/kernel/task_run.go:269 +0xf17 fp=0xc000927f30 sp=0xc000927e28 pc=0xa6dd97
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00135b908, 0x3f)
	pkg/sentry/kernel/task_run.go:97 +0x214 fp=0xc000927fc0 sp=0xc000927f30 pc=0xa6c7f4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc000927fe0 sp=0xc000927fc0 pc=0xa762a5
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc000927fe8 sp=0xc000927fe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 877
	pkg/sentry/kernel/task_start.go:400 +0xc5