Fix remote building on Nix 1.10

Dependencies

• [2] NAYQT2GT hydra-queue-runner: Use cmdBuildDerivation
• [3] 5AIYUMTB Basic remote building
• [4] 5LBMP7GA Fix remote building
• [5] N4IROACV Move buildRemote() into State
• [6] YR2IM6Y5 Temporarily disable machines after a connection failure

Change contents

• replacement in src/hydra-queue-runner/build-remote.cc at line 192
  [2.376]→[2.376:446](∅→∅)
  − copy the entire closure of ‘drvPath’, as well the required
  [2.376]

  [2.446]
  + copy the entire closure of ‘drvPath’, as well as the required
• edit in src/hydra-queue-runner/build-remote.cc at line 197
  [2.650]

  [2.650]
  + BasicDerivation basicDrv(step->drv);
• edit in src/hydra-queue-runner/build-remote.cc at line 211
  [2.893]

  [3.324]
  + basicDrv.inputSrcs.insert(i->second.path);
• replacement in src/hydra-queue-runner/build-remote.cc at line 233
  [2.1018]→[2.1018:1115](∅→∅)
  − to << cmdBuildDerivation << step->drvPath << step->drv << maxSilentTime << buildTimeout;
  [2.1018]

  [2.1115]
  + to << cmdBuildDerivation << step->drvPath << basicDrv << maxSilentTime << buildTimeout;