this derivation will be built:
  /nix/store/yr789gvj0a7f9q0f97qxnlc56fpccb84-bcachefs-module-7.0.0-28-generic.drv
building '/nix/store/yr789gvj0a7f9q0f97qxnlc56fpccb84-bcachefs-module-7.0.0-28-generic.drv'...