these 2 derivations will be built:
  /nix/store/65vlxspzs0q2p8mf41b3mbjlpnm3y7qb-closure-info.drv
  /nix/store/v7v4zm1zvz9ibk1achg35jnn3m3k0r0w-check-vars.drv
this path will be fetched (0.0 KiB download, 3.9 MiB unpacked):
  /nix/store/lhcm2hfi2dfzfp8gazx70gpp0mabfs5g-clan-cli
error: path '/nix/store/blmgrlqsvrc9k3b07m1s6l789nqizvp3-check-vars' is not valid
error: Cannot build '/nix/store/v7v4zm1zvz9ibk1achg35jnn3m3k0r0w-check-vars.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/blmgrlqsvrc9k3b07m1s6l789nqizvp3-check-vars