this derivation will be built:
  /nix/store/1nic4yilys5axyd6gcswdp0pfzgv3619-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/1nic4yilys5axyd6gcswdp0pfzgv3619-bcachefs-module-7.0.0-31-generic.drv'...