无法通过HTTP代理获取存储库

When I am trying to install Burrow https://github.com/linkedin/Burrow#build-and-install

go get github.com/linkedin/Burrow

I am getting the following error :

package gopkg.in/gcfg.v1: unrecognized import path "gopkg.in/gcfg.v1" 
(https fetch: Get https://gopkg.in/gcfg.v1?go-get=1: proxyconnect tcp: dial tcp :0: getsockopt: connection refused)

I have already set up proxy by:

export http_proxy=myproxy:port
export https_proxy=myproxy:port

Edit:

go get -u gopkg.in/gcfg.v1

also gives the same error:

package gopkg.in/gcfg.v1: unrecognized import path "gopkg.in/gcfg.v1" 
(https fetch: Get https://gopkg.in/gcfg.v1?go-get=1: proxyconnect tcp: dial tcp :0: getsockopt: connection refused)

Edit1:

go get -v gopkg.in/gcfg.v1

Fetching https://gopkg.in/gcfg.v1?go-get=1
https fetch failed: Get https://gopkg.in/gcfg.v1?go-get=1: proxyconnect tcp: dial tcp :0: getsockopt: connection refused
package gopkg.in/gcfg.v1: unrecognized import path "gopkg.in/gcfg.v1" (https fetch: Get https://gopkg.in/gcfg.v1?go-get=1: proxyconnect tcp: dial tcp :0: getsockopt: connection refused)

I solved the problem using:

export https_proxy=$http_proxy

To a more long lasting solution the /etc/environment can be updated.