$ docker build buehler/twitterbeat
Sending build context to Docker daemon 96.26 kB
Step 1 : FROM golang:1.5.2
---> 9c67771abd78
Step 2 : MAINTAINER Christoph Buehler <christoph.buehler@bluewin.ch>
---> Using cache
---> 57cbdd07c195
Step 3 : ENV GO15VENDOREXPERIMENT 1
---> Using cache
---> fd69aeb2425d
Step 4 : RUN git clone https://github.com/Masterminds/glide.git $GOPATH/src/github.com/Masterminds/glide && cd $GOPATH/src/github.com/Masterminds/glide && make bootstrap && make build && cp ./glide /usr/bin
---> Running in 025c97c1cba1
Cloning into '/go/src/github.com/Masterminds/glide'...
fatal: unable to access 'https://github.com/Masterminds/glide.git/': Failed to connect to github.com port 443: Connection timed out
The command '/bin/sh -c git clone https://github.com/Masterminds/glide.git $GOPATH/src/github.com/Masterminds/glide && cd $GOPATH/src/github.com/Masterminds/glide && make bootstrap && make build && cp ./glide /usr/bin' returned a non-zero code: 128
我想用docker建立一个弹性的beat(由Buehler推拍)。不过即使我设置了代理，我也会得到这个错误。我也重新启动了机器，试过了其他讨论中的每一个建议(编码密码、为git设置代理等)，但都没用。
到底哪儿错了？
