this derivation will be built:
  /nix/store/bn2grr5vbyz5gxzcxw1vbj9h7740lj3k-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/bn2grr5vbyz5gxzcxw1vbj9h7740lj3k-bcachefs-module-7.0.0-31-generic.drv'...