these 2 derivations will be built:
  /nix/store/s7v066xhmwwl0jcdr6y32m648mkms2i2-closure-info.drv
  /nix/store/52zl6r3a04fkgw3w0g2s378x5yzy6bwl-check-vars.drv
error: path '/nix/store/cgcbib6761n43aghwd19pi07a2a3smsq-check-vars' is not valid
error: Cannot build '/nix/store/52zl6r3a04fkgw3w0g2s378x5yzy6bwl-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/cgcbib6761n43aghwd19pi07a2a3smsq-check-vars