this derivation will be built:
  /nix/store/v6dlp9dnhm910aprkb4dkm0fai5sfd41-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/v6dlp9dnhm910aprkb4dkm0fai5sfd41-bcachefs-module-7.0.0-39-generic.drv'...