these 2 derivations will be built:
  /nix/store/0bhsdwrnrf1pzyv849mlrckqhf2p4pp9-closure-info.drv
  /nix/store/xjh7xf1xih4b6rwmg6pfsvnf19ad35x0-check-vars.drv
error: path '/nix/store/p1f5scc4421qgrh36mfmqjq5ryv8ykfm-check-vars' is not valid
error: Cannot build '/nix/store/xjh7xf1xih4b6rwmg6pfsvnf19ad35x0-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/p1f5scc4421qgrh36mfmqjq5ryv8ykfm-check-vars