this derivation will be built:
  /nix/store/v9vql90hh9dklpczbvnzsm56800r3rzy-interpolate-conformance.drv
v9vql90hh9dklpczbvnzsm56800r3rzy-interpolate-conformance.drv: mac02: not scheduled here: v9vql90hh9dklpczbvnzsm56800r3rzy-interpolate-conformance.drv, asking the scheduler again