Add FIXME

Dependencies

• [2] NAYQT2GT hydra-queue-runner: Use cmdBuildDerivation
• [*] 5AIYUMTB Basic remote building

Change contents

• edit in src/hydra-queue-runner/build-remote.cc at line 89
  [4.1844]

  [2.0]
  + // FIXME: substitute output pollutes our build log