compose: APIError: 500 Server Error on first docker-compose up / build

cc @aanand

I noticed this when testing the most recent RC (4)

Steps to reproduce:

1. Clone https://github.com/nathanleclaire/hubfwd
2. Run docker-compose up in the repo

Expected behavior: It doesn’t blow up Actual behavior: It blows up

On the first up and the first up only, so build smells suspicious.

Creating hubfwd_app_1...
Building app...
Step 0 : FROM golang:1.4.2
 ---> 121a93c90463
Step 1 : RUN go get -u github.com/codegangsta/negroni
 ---> Running in 5e2161a172f9
 ---> 623f1c94741b
Removing intermediate container 5e2161a172f9
Step 2 : RUN go get -u github.com/gorilla/mux
 ---> Running in c74924a6c8fd
 ---> 7923dd360f79
Removing intermediate container c74924a6c8fd
Step 3 : RUN go get -u github.com/Sirupsen/logrus
 ---> Running in 93443d6cf298
 ---> 3ae5e3801312
Removing intermediate container 93443d6cf298
Step 4 : RUN mkdir -p /go/src/github.com/nathanleclaire/hubfwd
 ---> Running in 8deddcbb0f1d
 ---> 6586dfbe5b2e
Removing intermediate container 8deddcbb0f1d
Step 5 : WORKDIR /go/src/github.com/nathanleclaire/hubfwd
 ---> Running in bb42cbdf1032
 ---> 0d824f6e8519
Removing intermediate container bb42cbdf1032
Step 6 : COPY . /go/src/github.com/nathanleclaire/hubfwd
 ---> ad6983d66cf7
Removing intermediate container e16e62829fb7
Step 7 : CMD go build
 ---> Running in 550e4ab79b39
 ---> 15ebeafc0600
Removing intermediate container 550e4ab79b39
Successfully built 15ebeafc0600
Attaching to hubfwd_app_1
Exception in thread Thread-1:
Traceback (most recent call last):
  File "/compose/build/docker-compose/out00-PYZ.pyz/threading", line 810, in __bootstrap_inner
  File "/compose/build/docker-compose/out00-PYZ.pyz/threading", line 763, in run
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.multiplexer", line 41, in _enqueue_output
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.log_printer", line 59, in _make_log_generator
  File "/compose/build/docker-compose/out00-PYZ.pyz/compose.cli.utils", line 77, in split_buffer
  File "/compose/build/docker-compose/out00-PYZ.pyz/docker.client", line 199, in _multiplexed_response_stream_helper
  File "/compose/build/docker-compose/out00-PYZ.pyz/docker.client", line 143, in _get_raw_response_socket
  File "/compose/build/docker-compose/out00-PYZ.pyz/docker.client", line 95, in _raise_for_status
APIError: 500 Server Error: Internal Server Error ("http: Hijack is incompatible with use of CloseNotifier")

I’m on OSX using a VM created by docker-machine in VirtualBox (boot2docker).