2015/10/22 23:01:52 httptest.Server blocked in Close after 5 seconds, waiting for connections:
  *net.TCPConn 0xc820692200 127.0.0.1:35530 in state new
panic: test timed out after 3m0s

goroutine 124 [running]:
testing.startAlarm.func1()
    /tmp/workdir/go/src/testing/testing.go:703 +0x132
created by time.goFunc
    /tmp/workdir/go/src/time/sleep.go:129 +0x3a

goroutine 1 [chan receive, 2 minutes]:
testing.RunTests(0x9f7650, 0xb7ac80, 0xf4, 0xf4, 0x701)
    /tmp/workdir/go/src/testing/testing.go:562 +0x8b9
testing.(*M).Run(0xc820183f08, 0x5bdca7)
    /tmp/workdir/go/src/testing/testing.go:494 +0x70
net/http_test.TestMain(0xc820183f08)
    /tmp/workdir/go/src/net/http/main_test.go:19 +0x21
main.main()
    net/http/_test/_testmain.go:584 +0x114

goroutine 17 [syscall, 2 minutes, locked to thread]:
runtime.goexit()
    /tmp/workdir/go/src/runtime/asm_amd64.s:1805 +0x1

goroutine 114 [semacquire, 2 minutes]:
sync.runtime_Semacquire(0xc82018b7dc)
    /tmp/workdir/go/src/runtime/sema.go:43 +0x26
sync.(*WaitGroup).Wait(0xc82018b7d0)
    /tmp/workdir/go/src/sync/waitgroup.go:126 +0xb4
net/http/httptest.(*Server).Close(0xc82018b7a0)
    /tmp/workdir/go/src/net/http/httptest/server.go:170 +0x26a
net/http_test.TestClientWrites(0xc820079950)
    /tmp/workdir/go/src/net/http/client_test.go:572 +0x78a
testing.tRunner(0xc820079950, 0xb7b0e8)
    /tmp/workdir/go/src/testing/testing.go:456 +0x98
created by testing.RunTests
    /tmp/workdir/go/src/testing/testing.go:561 +0x879