x/net/http2: pre-1.7 broken build

[rolandshoemaker]

What version of Go are you using (go version)?

go version go1.6 linux/amd64

What operating system and processor architecture are you using (go env)?

GOARCH="amd64"
GOBIN=""
GOEXE=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/roland/gopath"
GORACE=""
GOROOT="/home/roland/go1.6"
GOTOOLDIR="/home/roland/go1.6/pkg/tool/linux_amd64"
GO15VENDOREXPERIMENT="1"
CC="gcc"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0"
CXX="g++"
CGO_ENABLED="1"

What did you do?

Try to run x/net/http2 tests with 1.6

What did you expect to see?

No error

What did you see instead?

# golang.org/x/net/http2
./transport.go:1853: ctx.Done undefined (type contextContext is interface with no methods)
./transport.go:1854: ctx.Err undefined (type contextContext is interface with no methods)
FAIL    golang.org/x/net/http2 [build failed]

It appears that golang.org/x/net/http2 ed0556cc888129faa06ff0ef3c65e0ce59c8b75c introduces this bug by attempting to use methods on contextContext which is a empty interface for 1.6 whereas for 1.7 it implements context.Context.

It seems like the simplest solution would be to make contextContext for 1.6 implement golang.org/x/net/context.Context.

[leadinglocally]

This just started happening to me about 12 hours ago for no reason, on Go 1.7 !!!
How do i fix it?

[gopherbot]

CL https://golang.org/cl/30070 mentions this issue.