this derivation will be built:
  /nix/store/sgkkvw41vaw85y1znmyrqvmsa9hwn261-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/sgkkvw41vaw85y1znmyrqvmsa9hwn261-bcachefs-module-7.0.0-39-generic.drv'...