this derivation will be built:
  /nix/store/wy49g2gc2sfair3mi8dkvfbdw5bdw5d4-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/wy49g2gc2sfair3mi8dkvfbdw5bdw5d4-bcachefs-module-7.0.0-39-generic.drv'...