this derivation will be built:
  /nix/store/a21d45lnc5rl79bfxwcnx7v012y0hyv5-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/a21d45lnc5rl79bfxwcnx7v012y0hyv5-bcachefs-module-7.0.0-38-generic.drv'...