Imports
- github.com/buildkite/agent/agent/plugin
- github.com/buildkite/agent/bootstrap/shell
- github.com/buildkite/agent/env
- github.com/buildkite/agent/process
- github.com/buildkite/agent/retry
- github.com/buildkite/shellwords
- github.com/mitchellh/go-homedir
- github.com/pkg/errors
- golang.org/x/crypto/ssh/knownhosts