these 4 derivations will be built:
  /nix/store/lrx3xvxjcmx37kp05fyhgxnahlpk1drq-clan-cli-source.drv
  /nix/store/yh7az86nicnyd00i77qb2amivbkwa3hf-clan-cli.drv
  /nix/store/yippqa97ghkr3npdx603j1xr56jnmrzm-closure-info.drv
  /nix/store/z2s5dnwckgiav34y4gyw776xmnh2k88y-check-vars.drv
error: path '/nix/store/b5wszp0qjrglwbjx20560w0ig5b9vkxh-check-vars' is not valid
error: Cannot build '/nix/store/z2s5dnwckgiav34y4gyw776xmnh2k88y-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/b5wszp0qjrglwbjx20560w0ig5b9vkxh-check-vars