these 2 derivations will be built:
  /nix/store/z29k1nyd5jhhbzqapbx8lkga5f8a0l9z-closure-info.drv
  /nix/store/8w4q8fxdvxfm0q7wv0mw6k81b34xvj8l-check-vars.drv
error: path '/nix/store/dhdrcmhq96igr4sghhx3vbak4v0pnicm-check-vars' is not valid
error: Cannot build '/nix/store/8w4q8fxdvxfm0q7wv0mw6k81b34xvj8l-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/dhdrcmhq96igr4sghhx3vbak4v0pnicm-check-vars