this derivation will be built:
  /nix/store/c8b2icnakgivfvk04l8yzq6q519f370l-bcachefs-module-7.0.0-31-generic.drv
building '/nix/store/c8b2icnakgivfvk04l8yzq6q519f370l-bcachefs-module-7.0.0-31-generic.drv'...