my go version is go version go1.4 darwin/amd64
I clone the go/mobile repo and build it using docker:

go get -d golang.org/x/mobile/...
docker build -t mobile $GOPATH/src/golang.org/x/mobile

and I want to build the example/basic using this command as you show in README:

docker run -v $GOPATH/src:/src mobile /bin/bash -c 'cd example/basic && ./make.bash'

and it just output

/bin/bash: line 0: cd: example/basic: No such file or directory

but at this time I'm under golang.org/x/mobile directly.

and if I execute make.bash in the example/basic:

./make.bash
go build runtime: android/arm must be bootstrapped using make.bash

so how should I build this example?