As seen in
http://reports.vapour.ws/releases/issue/57f5b671749a5652fef1c01c
WARNING: DATA RACE
Read by goroutine 135:
net/http.(*Request).closeBody()
/usr/lib/go-1.6/src/net/http/request.go:1075 +0x33
net/http.(*persistConn).writeLoop()
/usr/lib/go-1.6/src/net/http/transport.go:1289 +0x426
Previous write by goroutine 7:
gopkg.in/macaroon-bakery.v1/httpbakery.(*Client).setRequestBody()
/home/ubuntu/juju-core_2.0-rc3/src/gopkg.in/macaroon-bakery.v1/httpbakery/client.go:397 +0x233
gopkg.in/macaroon-bakery.v1/httpbakery.(*Client).doWithBody()
/home/ubuntu/juju-core_2.0-rc3/src/gopkg.in/macaroon-bakery.v1/httpbakery/client.go:286 +0x78a
gopkg.in/macaroon-bakery.v1/httpbakery.(*Client).DoWithBodyAndCustomError()
/home/ubuntu/juju-core_2.0-rc3/src/gopkg.in/macaroon-bakery.v1/httpbakery/client.go:245 +0x212
github.com/juju/juju/api.httpRequestDoer.DoWithBody()
/home/ubuntu/juju-core_2.0-rc3/src/github.com/juju/juju/api/http.go:103 +0x406
github.com/juju/httprequest.(*Client).Do()
/home/ubuntu/juju-core_2.0-rc3/src/github.com/juju/httprequest/client.go:167 +0x582
github.com/juju/juju/api.(*Client).httpPost()
/home/ubuntu/juju-core_2.0-rc3/src/github.com/juju/juju/api/client.go:481 +0x212
github.com/juju/juju/api.(*Client).UploadCharm()
/home/ubuntu/juju-core_2.0-rc3/src/github.com/juju/juju/api/client.go:314 +0x869
github.com/juju/juju/api.(*Client).AddLocalCharm()
/home/ubuntu/juju-core_2.0-rc3/src/github.com/juju/juju/api/client.go:297 +0x362
github.com/juju/juju/api_test.(*clientMacaroonSuite).TestAddLocalCharmUnauthorized()
/home/ubuntu/juju-core_2.0-rc3/src/github.com/juju/juju/api/client_macaroon_test.go:81 +0x391
runtime.call32()
/usr/lib/go-1.6/src/runtime/asm_amd64.s:472 +0x3d
reflect.Value.Call()
/usr/lib/go-1.6/src/reflect/value.go:303 +0xcd
gopkg.in/check%2ev1.(*suiteRunner).forkTest.func1()
/home/ubuntu/juju-core_2.0-rc3/src/gopkg.in/check.v1/check.go:772 +0x5d1
gopkg.in/check%2ev1.(*suiteRunner).forkCall.func1()
/home/ubuntu/juju-core_2.0-rc3/src/gopkg.in/check.v1/check.go:666 +0x80
