these 2 derivations will be built:
  /nix/store/yblmlacdd71vmbcrjjxds6qmhl4ykv7l-harmonia-llvm-cov-3.3.0.drv
  /nix/store/wcsbj0mr8msd1r8fvxg2hb1cm9hs876s-inputDerivation-upload-codecov-effect.drv
building '/nix/store/yblmlacdd71vmbcrjjxds6qmhl4ykv7l-harmonia-llvm-cov-3.3.0.drv'...
building '/nix/store/wcsbj0mr8msd1r8fvxg2hb1cm9hs876s-inputDerivation-upload-codecov-effect.drv'...