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

goroutine 55267 gp=0xc001bdae00 m=48 mp=0xc00137c708 [running]:
panic({0x12ad960?, 0x236f7d0?})
	bazel-out/k8-fastbuild/bin/external/io_bazel_rules_go/stdlib_/src/runtime/panic.go:804 +0x168 fp=0xc0006bf390 sp=0xc0006bf2e0 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=0xc0006bf3f0 sp=0xc0006bf390 pc=0x476719
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).SendGroupSignal(0x0, 0xc0020c3e00)
	pkg/sentry/kernel/task_signals.go:385 +0x38 fp=0xc0006bf450 sp=0xc0006bf3f0 pc=0xb16cd8
gvisor.dev/gvisor/pkg/sentry/kernel.(*rlimitCPUSoftListener).NotifyTimer(0x10103793918?, 0xc00294d370?)
	pkg/sentry/kernel/task_acct.go:151 +0x57 fp=0xc0006bf478 sp=0xc0006bf450 pc=0xaf6977
gvisor.dev/gvisor/pkg/sentry/ktime.(*SyntheticTimer).Set(0xc00294d370, {0x0?, {0x85aa38?}, 0x0?}, 0x0)
	pkg/sentry/ktime/synthetic_timer.go:139 +0x256 fp=0xc0006bf518 sp=0xc0006bf478 pc=0x85c836
gvisor.dev/gvisor/pkg/sentry/kernel.(*ThreadGroup).notifyRlimitCPUUpdated(0xc00294cc08, 0x0)
	pkg/sentry/kernel/task_acct.go:103 +0x145 fp=0xc0006bf590 sp=0xc0006bf518 pc=0xaf6685
gvisor.dev/gvisor/pkg/sentry/kernel.(*Kernel).NewThreadGroup(0xc0002a9008, 0xc0024ef9d0, 0xc002d2c580, 0x0, 0xc002d2c5a0)
	pkg/sentry/kernel/thread_group.go:308 +0x3ac fp=0xc0006bf5d0 sp=0xc0006bf590 pc=0xb23a0c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Clone(0xc001b3b908, 0xc0006bf978)
	pkg/sentry/kernel/task_clone.go:238 +0x143b fp=0xc0006bf968 sp=0xc0006bf5d0 pc=0xafc47b
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.clone(0x0?, 0xc001bdae00?, 0x300000002?, 0xc0006bfac0?, 0x474a0e?, 0xc001bdae00?)
	pkg/sentry/syscalls/linux/sys_thread.go:215 +0xbd fp=0xc0006bfa38 sp=0xc0006bf968 pc=0xcfe1fd
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Clone(0x49a099?, 0xc0006bfad0?, {{0xa1024000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_clone_amd64.go:36 +0x68 fp=0xc0006bfa78 sp=0xc0006bfa38 pc=0xcbe248
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc001b3b908, 0x38, {{0xa1024000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:143 +0x80b fp=0xc0006bfca8 sp=0xc0006bfa78 pc=0xb1e2ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc001b3b908, 0x38, {{0xa1024000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:323 +0x4e fp=0xc0006bfd00 sp=0xc0006bfca8 pc=0xb1f84e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001b3b908, 0x38, {{0xa1024000}, {0x0}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:283 +0x7d fp=0xc0006bfd50 sp=0xc0006bfd00 pc=0xb1f3fd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc001332f70?)
	pkg/sentry/kernel/task_syscall.go:258 +0x349 fp=0xc0006bfe28 sp=0xc0006bfd50 pc=0xb1f0e9
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc003134ab0?, 0xc001b3b908)
	pkg/sentry/kernel/task_run.go:269 +0x1325 fp=0xc0006bff38 sp=0xc0006bfe28 pc=0xb12945
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc001b3b908, 0x1da1)
	pkg/sentry/kernel/task_run.go:97 +0x27d fp=0xc0006bffc0 sp=0xc0006bff38 pc=0xb10f5d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
	pkg/sentry/kernel/task_start.go:400 +0x25 fp=0xc0006bffe0 sp=0xc0006bffc0 pc=0xb1c825
runtime.goexit({})
	src/runtime/asm_amd64.s:1700 +0x1 fp=0xc0006bffe8 sp=0xc0006bffe0 pc=0x47d0c1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start in goroutine 55266
	pkg/sentry/kernel/task_start.go:400 +0xd9