this derivation will be built:
  /nix/store/h7008ybhdpk01rybjz1dw9f3h3cym3c2-bcachefs-module-7.0.0-38-generic.drv
building '/nix/store/h7008ybhdpk01rybjz1dw9f3h3cym3c2-bcachefs-module-7.0.0-38-generic.drv'...