these 2 derivations will be built:
  /nix/store/g9izhxi2pzkqh8v9lfcl617dmi2ikvdq-closure-info.drv
  /nix/store/sn7zd6srh5bzbv72jkgw7ijwm2pwnscq-check-vars.drv
error: path '/nix/store/v453sda6bqf12qhcbyaprb2kzw5z0p60-check-vars' is not valid
error: Cannot build '/nix/store/sn7zd6srh5bzbv72jkgw7ijwm2pwnscq-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/v453sda6bqf12qhcbyaprb2kzw5z0p60-check-vars