this derivation will be built:
  /nix/store/a9aywgmisn9vhdx893304yfc19y3v9ai-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/a9aywgmisn9vhdx893304yfc19y3v9ai-bcachefs-module-7.0.0-39-generic.drv'...