this derivation will be built:
  /nix/store/ldpkwm5vhxvx6h25565xq9id5r9x7228-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/ldpkwm5vhxvx6h25565xq9id5r9x7228-bcachefs-module-7.0.0-39-generic.drv'...