buildx failed with: ERROR: failed to solve: process "/bin/sh -c go build -trimpath -ldflags=\"-s -w -X github.com/le0pard/postal_server/version.Version=$BUILD_VERSION -X github.com/le0pard/postal_server/version.GitCommit=$BUILD_GIT_COMMIT -X github.com/le0pard/postal_server/version.BuildTime=$(TZ=UTC date +\"%Y-%m-%dT%H:%M:%S%z\")\" -v -o postal_server" did not complete successfully: exit code: 1