these 2 derivations will be built:
  /nix/store/62ilr66nqdr3z0xf188k2q7jk9badnfj-closure-info.drv
  /nix/store/8hppdi6k46rp8br4dwr4dxnkb6v68n48-check-vars.drv
error: path '/nix/store/pcyn6fpzs28dd33fm1liivyz1762qamr-check-vars' is not valid
error: Cannot build '/nix/store/8hppdi6k46rp8br4dwr4dxnkb6v68n48-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/pcyn6fpzs28dd33fm1liivyz1762qamr-check-vars