panic: runtime error: slice bounds out of range [:17] with capacity 16

goroutine 137 [running]:
DIAGNOSIS:
I0102 17:24:14.592817   10618 x:0] ***************************
I0102 17:24:14.592916   10618 x:0] Args: [/syzkaller/managers/ptrace-direct-overlay-host-race/current/image -root /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -alsologtostderr -platform=ptrace -file-access=exclusive -overlay -network=host -TESTONLY-unsafe-nonroot debug -stacks --ps ci-gvisor-ptrace-direct-overlay-host-race-2]
I0102 17:24:14.593059   10618 x:0] Version release-20191213.0-56-g1f384ac42b9e
I0102 17:24:14.593085   10618 x:0] PID: 10618
I0102 17:24:14.593135   10618 x:0] UID: 0, GID: 0
I0102 17:24:14.593198   10618 x:0] Configuration:
I0102 17:24:14.593218   10618 x:0] 		RootDir: /syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root
I0102 17:24:14.593255   10618 x:0] 		Platform: ptrace
I0102 17:24:14.593287   10618 x:0] 		FileAccess: exclusive, overlay: true
I0102 17:24:14.593344   10618 x:0] 		Network: host, logging: false
I0102 17:24:14.593404   10618 x:0] 		Strace: false, max size: 1024, syscalls: []
I0102 17:24:14.593461   10618 x:0] ***************************
W0102 17:24:14.593492   10618 x:0] Block the TERM signal. This is only safe in tests!
D0102 17:24:14.593639   10618 x:0] Load container "/syzkaller/managers/ptrace-direct-overlay-host-race/workdir/gvisor_root" "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0102 17:24:14.602478   10618 x:0] Signal container "ci-gvisor-ptrace-direct-overlay-host-race-2": signal 0
D0102 17:24:14.602606   10618 x:0] Signal sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0102 17:24:14.602671   10618 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0102 17:24:14.603250   10618 x:0] urpc: successfully marshalled 123 bytes.
I0102 17:24:14.718965   10618 x:0] Found sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2", PID: 4829
I0102 17:24:14.719052   10618 x:0] Retrieving sandbox stacks
D0102 17:24:14.719090   10618 x:0] Stacks sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
D0102 17:24:14.719164   10618 x:0] Connecting to sandbox "ci-gvisor-ptrace-direct-overlay-host-race-2"
W0102 17:24:14.719311   10618 x:0] FATAL ERROR: retrieving stacks: connecting to control server at PID 4829: connection refused
retrieving stacks: connecting to control server at PID 4829: connection refused
W0102 17:24:14.719534   10618 x:0] Failure to execute command, err: 1