Cross compiling in docker container for OSX fails

[akashdobaria]

Issue:
I am building a CLI using Go and using this package to store credentials for the users locally. I am trying to set up a build pipeline to automate building for Linux, Windows and MacOS. Linux and Windows builds run fine but the MacOS build gives the error:

# github.com/docker/docker-credential-helpers/osxkeychain gcc: error: unrecognized command line option '-mmacosx-version-min=10.11'

Setup:
Using this image: golang:1.12.2