Deployed to openshift 4.3 and got a build error.

[os-learner]

Expectations:
Following the steps, my expectation is to see two pods in the namespace.
Build pod is in "Failed" state and the errors are :
STEP 1: FROM docker.io/golang:1.11
STEP 2: LABEL authors="Mattia Mascia mmascia@redhat.com"
823cb071399627a31b62c23b734a0c7128d8a5b2465e6e80110664f058d198e8
STEP 3: ADD https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 /usr/bin/dep
error: build error: error building at STEP "ADD https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 /usr/bin/dep": source can't be a URL for COPY

Don't know how to proceed.
Any assistance is appreciated.

[eye0fra]

for openshift 4.3 check the branch https://github.com/openlab-red/mutating-webhook-vault-agent/tree/rh-summit-2020
It is still wip