this derivation will be built:
  /nix/store/q2j90kkfmbmz6grxlw6r4hnhi3z1aw2j-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/q2j90kkfmbmz6grxlw6r4hnhi3z1aw2j-bcachefs-module-7.0.0-39-generic.drv'...