this derivation will be built:
  /nix/store/aj147n6fk4qsjrk81jalvqga0s3cb0yr-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/aj147n6fk4qsjrk81jalvqga0s3cb0yr-bcachefs-module-7.0.0-39-generic.drv'...