Goon driver fails under heavy usage

Working with the goon driver sometimes I get the following error:

> panic: write /dev/stdout: broken pipe
>
>
> goroutine 21 [running]:
> runtime.panic(0x4be580, 0xc208000350)
> /usr/lib/go/src/pkg/runtime/panic.c:279 +0xf5
> log.(*Logger).Panicf(0xc20801a230, 0x4fdc90, 0x3, 0x7f04e7dbbe38, 0x1, 0x1)
> /usr/lib/go/src/pkg/log/log.go:200 +0xcd
> main.fatal_if(0x4dfc20, 0xc2080264e0)
> /root/home/test/goon/util.go:38 +0x180
> main.outLoop(0x7f04e7f46670, 0xc208034030, 0x7f04e7f46318, 0xc208034008, 0x0, 0xc2080041e0)
> /root/home/test/goon/io.go:151 +0x41b
> created by main.wrapStdout
> /root/home/test/goon/io.go:34 +0x181
>
> goroutine 16 [chan receive]:
> main.proto_2_0(0x7fffce170101, 0x503bf0, 0x3, 0x4fe1b0, 0x1, 0xc20800e060, 0x9, 0x9, 0x0, 0x0)
> /root/home/test/goon/proto_2_0.go:58 +0x421
> main.main()
> /root/home/test/goon/main.go:51 +0x3d7
>
> goroutine 19 [finalizer wait]:
> runtime.park(0x417720, 0x5a78f0, 0x5a6409)
> /usr/lib/go/src/pkg/runtime/proc.c:1369 +0x89
> runtime.parkunlock(0x5a78f0, 0x5a6409)
> /usr/lib/go/src/pkg/runtime/proc.c:1385 +0x3b
> runfinq()
> /usr/lib/go/src/pkg/runtime/mgc0.c:2644 +0xcf
> runtime.goexit()
> /usr/lib/go/src/pkg/runtime/proc.c:1445