these 2 derivations will be built:
  /nix/store/94ndhd80kg24wqqb7qw7aqawmminb3af-closure-info.drv
  /nix/store/j2x3id6flwzmq8snwm9fgws3xbhxkk7b-check-vars.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/n5w2q6ncp920q4q22rmfrymp59sacv26-clan-cli
error: path '/nix/store/14dmcidnrsq668v0psi7j3b206h66ib9-check-vars' is not valid
error: Cannot build '/nix/store/j2x3id6flwzmq8snwm9fgws3xbhxkk7b-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/14dmcidnrsq668v0psi7j3b206h66ib9-check-vars