these 2 derivations will be built:
  /nix/store/qlwgkm6m9waxdc2qyl9w3l23bf7rnbyv-closure-info.drv
  /nix/store/mfam61j0r74p49wkz9wmz34408i1419p-check-vars.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/mcrf86glb1fjc3270cnl8zv8r65g98ix-clan-cli
error: path '/nix/store/72km86skg3pb3v16gg9h0i9jqln06z62-check-vars' is not valid
error: Cannot build '/nix/store/mfam61j0r74p49wkz9wmz34408i1419p-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/72km86skg3pb3v16gg9h0i9jqln06z62-check-vars