panic: runtime error: index out of range
DIAGNOSIS:
I0404 02:56:02.490789   17880 x:0] ***************************
I0404 02:56:02.490844   17880 x:0] Args: [/syzkaller/managers/kvm-direct-sandbox/current/image -root /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=kvm -file-access=exclusive -network=sandbox debug -stacks ci-gvisor-kvm-direct-sandbox-1]
I0404 02:56:02.490858   17880 x:0] Version release-20190304.1-70-g1df3fa699774
I0404 02:56:02.490865   17880 x:0] PID: 17880
I0404 02:56:02.490870   17880 x:0] UID: 0, GID: 0
I0404 02:56:02.490874   17880 x:0] Configuration:
I0404 02:56:02.490877   17880 x:0] 		RootDir: /syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root
I0404 02:56:02.490880   17880 x:0] 		Platform: kvm
I0404 02:56:02.490892   17880 x:0] 		FileAccess: exclusive, overlay: false
I0404 02:56:02.490898   17880 x:0] 		Network: sandbox, logging: false
I0404 02:56:02.490904   17880 x:0] 		Strace: false, max size: 1024, syscalls: []
I0404 02:56:02.490908   17880 x:0] ***************************
D0404 02:56:02.490929   17880 x:0] Load container "/syzkaller/managers/kvm-direct-sandbox/workdir/gvisor_root" "ci-gvisor-kvm-direct-sandbox-1"
D0404 02:56:02.492291   17880 x:0] Signal container "ci-gvisor-kvm-direct-sandbox-1": signal 0
D0404 02:56:02.492310   17880 x:0] Signal sandbox "ci-gvisor-kvm-direct-sandbox-1"
D0404 02:56:02.492316   17880 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-1"
D0404 02:56:02.492544   17880 x:0] urpc: successfully marshalled 110 bytes.
I0404 02:56:02.902975   17880 x:0] Found sandbox "ci-gvisor-kvm-direct-sandbox-1", PID: 40053
I0404 02:56:02.903008   17880 x:0] Retrieving sandbox stacks
D0404 02:56:02.903013   17880 x:0] Stacks sandbox "ci-gvisor-kvm-direct-sandbox-1"
D0404 02:56:02.903018   17880 x:0] Connecting to sandbox "ci-gvisor-kvm-direct-sandbox-1"
D0404 02:56:02.903095   17880 x:0] urpc: successfully marshalled 36 bytes.
W0404 02:56:02.965609   17880 x:0] FATAL ERROR: retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer
retrieving stacks: getting sandbox "ci-gvisor-kvm-direct-sandbox-1" stacks: urpc method "debug.Stacks" failed: connection reset by peer