these 2 derivations will be built:
  /nix/store/s77gxjnhcid36pzalfrzmmhxk567qr0f-closure-info.drv
  /nix/store/ws3p51snmrx24qik2pn2ggnwjiaqb92l-check-vars.drv
error: path '/nix/store/pw4m0di4j2x9hzq0llk65h9wvfvsjh5c-check-vars' is not valid
error: Cannot build '/nix/store/ws3p51snmrx24qik2pn2ggnwjiaqb92l-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/pw4m0di4j2x9hzq0llk65h9wvfvsjh5c-check-vars