buildx failed with: ERROR: failed to build: failed to solve: process "/bin/sh -c go build -ldflags=\"-X 'github.com/livepeer/stream-tester/model.Version=$version' -X 'github.com/livepeer/stream-tester/model.IProduction=true'\" \t-tags mainnet \tcmd/orch-tester/orch_tester.go cmd/orch-tester/broadcaster_metrics.go" did not complete successfully: exit code: 2