buildx failed with: ERROR: failed to solve: process "/bin/sh -c CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH GO111MODULE=on go build -ldflags=\"-s -w\" -a -o bin/machinebroker ./broker/machinebroker/cmd/machinebroker/main.go && CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH GO111MODULE=on go build -ldflags=\"-s -w\" -a -o bin/irictl-machine ./irictl-machine/cmd/irictl-machine/main.go" did not complete successfully: exit code: 1