these 2 derivations will be built:
  /nix/store/b616m2xq47lfzmpyx6p5pmfg04gylgix-closure-info.drv
  /nix/store/xs777fh7h00igrlr6450qzwk5qc31grd-check-vars.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/lhcm2hfi2dfzfp8gazx70gpp0mabfs5g-clan-cli
error: path '/nix/store/bnl3921i33cbcbgf1lkxda87lvwl9ml9-check-vars' is not valid
error: Cannot build '/nix/store/xs777fh7h00igrlr6450qzwk5qc31grd-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/bnl3921i33cbcbgf1lkxda87lvwl9ml9-check-vars