[[constraint]]
  name = "github.com/pkg/errors"
  version = "0.8.0"

[[constraint]]
  name = "github.com/spf13/pflag"
  version = "1.0.0"

[[constraint]]
  name = "github.com/google/go-cmp"
  version = "0.2.0"

[[constraint]]
  branch = "master"
  name = "golang.org/x/tools"