these 5 derivations will be built:
  /nix/store/091bj61y0ndwbm5x0sa1qk1kwqw09xpd-clan-runtime.drv
  /nix/store/9zrjix564g3fwxkh7708d5jjw15ir5yg-clan-cli-source.drv
  /nix/store/jvrh0b47imk4zlydjjx1vn32y6ax1dzy-closure-info.drv
  /nix/store/m4njm14p5wlqc5xryj9wzjhdk7kwb101-clan-cli.drv
  /nix/store/iignl00234fxx95077dfgicff5yd4n1c-check-vars.drv
error: path '/nix/store/jm2lw77lrm7vh6i4nn4dd9x3s110pvhx-check-vars' is not valid
error: Cannot build '/nix/store/iignl00234fxx95077dfgicff5yd4n1c-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/jm2lw77lrm7vh6i4nn4dd9x3s110pvhx-check-vars