this derivation will be built:
  /nix/store/39ncym6x8adr6gd3pw7qjx218hdi497r-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/39ncym6x8adr6gd3pw7qjx218hdi497r-bcachefs-module-7.0.0-39-generic.drv'...