code: func buildMigrationBinary(dir, binary string) {
  	changeDir(dir)
  	cmd := exec.Command("go", "build", "-o", binary)
  	if out, err := cmd.CombinedOutput(); err != nil {
  		beeLogger.Log.Errorf("Could not build migration binary: %s", err)
  		formatShellErrOutput(string(out))
  		removeTempFile(dir, binary)
  		removeTempFile(dir, binary+".go")
  		os.Exit(2)
  	}
  }
docs: // buildMigrationBinary changes directory to database/migrations folder and go-build the source