these 2 derivations will be built:
  /nix/store/m1911f45n076za9jkxkpfji2i2k5slrj-closure-info.drv
  /nix/store/76fl4rjbaa3chb3k4miz5fc93pf6h1i9-check-vars.drv
error: path '/nix/store/605nc7h54ibjcdagzg2z6ahbx0mq53z6-check-vars' is not valid
error: Cannot build '/nix/store/76fl4rjbaa3chb3k4miz5fc93pf6h1i9-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/605nc7h54ibjcdagzg2z6ahbx0mq53z6-check-vars