this derivation will be built:
  /nix/store/fxy0dpgv5c0p7pd98knjv3v0g2f247id-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/fxy0dpgv5c0p7pd98knjv3v0g2f247id-bcachefs-module-7.0.0-28-generic.drv'...