these 2 derivations will be built:
  /nix/store/752xp4w9f0356c4v16j915c4ag6wfqv5-closure-info.drv
  /nix/store/hniymlg3gxff81kr1fvkk97awiq7cym9-check-vars.drv
error: path '/nix/store/31732k1x6akla017gp1fxfvab1dhhffb-check-vars' is not valid
error: Cannot build '/nix/store/hniymlg3gxff81kr1fvkk97awiq7cym9-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/31732k1x6akla017gp1fxfvab1dhhffb-check-vars