panic: time: Stop called on uninitialized Timer goroutine 1579 [running]: time.(*Timer).Stop(...) /usr/local/go/src/time/sleep.go:79 github.com/google/syzkaller/pkg/ipc.(*command).exec.func1() /syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:776 +0x105 created by github.com/google/syzkaller/pkg/ipc.(*command).exec /syzkaller/gopath/src/github.com/google/syzkaller/pkg/ipc/ipc.go:769 +0x25b