this derivation will be built:
  /nix/store/y9cd3cljnfdd0f8r9s9q850r797mkhh7-bcachefs-module-7.0.0-39-generic.drv
building '/nix/store/y9cd3cljnfdd0f8r9s9q850r797mkhh7-bcachefs-module-7.0.0-39-generic.drv'...