make docker-build failed

[gyliu513]

$ make docker-build
fatal: No names found, cannot describe anything.
docker pull docker.io/docker/dockerfile:experimental
experimental: Pulling from docker/dockerfile
d7f0373ffb1d: Pull complete
Digest: sha256:600e5c62eedff338b3f7a0850beb7c05866e0ef27b2d2e8c02aa468e78496ff5
Status: Downloaded newer image for docker/dockerfile:experimental
docker.io/docker/dockerfile:experimental
docker pull docker.io/library/golang:1.15.3
1.15.3: Pulling from library/golang
e4c3d3e4f7b0: Pull complete
101c41d0463b: Pull complete
8275efcd805f: Pull complete
751620502a7a: Pull complete
aaabf962c4fc: Pull complete
7883babec904: Pull complete
1791d366c848: Pull complete
Digest: sha256:1ba0da74b20aad52b091877b0e0ece503c563f39e37aa6b0e46777c4d820a2ae
Status: Downloaded newer image for golang:1.15.3
docker.io/library/golang:1.15.3
docker pull gcr.io/distroless/static:latest
latest: Pulling from distroless/static
5dea5ec2316d: Pull complete
Digest: sha256:60a7d0c45932b6152b2f7ba561db2f91f58ab14aa90b895c58f72062c768fd77
Status: Downloaded newer image for gcr.io/distroless/static:latest
gcr.io/distroless/static:latest
bash: gcloud: command not found
bash: gcloud: command not found
DOCKER_BUILDKIT=1 docker build --build-arg goproxy=https://proxy.golang.org,direct --build-arg ARCH=amd64 --build-arg ldflags="" . -t gcr.io//cluster-api-nested-controller-amd64:dev
invalid argument "gcr.io//cluster-api-nested-controller-amd64:dev" for "-t, --tag" flag: invalid reference format

[christopherhein]

/kind bug